I up-voted an answer but the red highlight around the up arrow never came as can be seen below.    To make sure, I voted again and got the error message.
Related:   I am using 1.0.71 on KitKat.  Immediately after voting, the arrow is displayed in red and the vote count is correct. However, when I scroll to read answers and then back to the top, the arrow is grey again and the vote count is reset to the previous value.  A reload of the question (pulling the finger down) is needed to show the correct situation, which is kept from then on.  This case was on security.stackexchange.com but I observed the same behavior on other sites too.  Screenshots   original state:  upvoted:  scrolled down and back up  after a reload
XeLaTeX update [20201004] and item ball in Beamer Beamer item balls go missing while compiling in XeLateX since yesterday's TeXlive update, however, the same code works with pdfLaTeX. Any solution, please. Here is my MWE: \documentclass{beamer}  \setbeamertemplate{itemize item}[ball] \setbeamertemplate{enumerate item}[ball]  \begin{document}  \begin{frame} \frametitle{A tested title} text \begin{enumerate}     \item this is an item \end{enumerate} text3 \begin{itemize}     \item this is an item \end{itemize} \end{frame} \end{document} Why is this command not working: "ps aux | grep xscreensaver" I didn't see any hits about this on google, so I'm asking you:  I just tried to run this command in an ssh session, local is Debian Wheezy KDE, remote is Fedora 21 Gnome:  ps aux | grep xscreensaver   and this is the output:  bash:  grep: command not found...   I never seen this before, what is the cause?  I just few hours before updated the system, but didn't see any packages marked for removal. There are only two users on the system, and only me installs or removes software on it.  EDIT #1  Here is the commands and output copied,notice that the space is not there the second time:  [root@Hostname ~]# ps aux |  grep xscreensaver bash:  : command not found... [root@Hostname ~]# ps aux | grep xscreensaver bash:  grep: command not found... Non-trivial cyclic group with unique generator Let $G$ be a non-trivial cyclic group with an unique generator. Show that $G$ has exactly two elements.   Let $g$ be a generator of $G$. My first idea to approach the problem was to show that if $|G|=n &gt; 2$ then there is an integer $k$ between 1 and $n$ such that $\langle g^k \rangle = G$ or, equivalently, $g \in \langle g^k \rangle$. My second idea was to analyse the problem in 2 separate cases. For the first one, if $n$ is prime, let $k$ be a positive integer then, by Lagrange's Theorem, $|g^k| \mid n$ and, therefore, $\langle g^k \rangle = n$. Hence, we must conclude that, if $n &gt; 2$ the generator cannot be unique. For the second case, where $n$ is composite, I was hoping to get to a contradiction, but could not advance any further. Is there a way to develop either of these ideas or is it necessary a new approach? Software center disappeared [19.10] I have had trouble with sound (now fixed) since upgrading to 19.10, and in the middle of trying the common solutions, the Software Center "disappeared". I got aware of quite late, so I don't know what caused it.  Anyway, would you know how to reinstall it ? Trying sudo apt-get install software-center doesn't work. Disable three-letter pings from chat to save Oliver, Olivier and Olive from Oli's pings Verbless sentence I thought I heard my teacher said: 'Don't construct a sentence without a verb.'  Is there such rule in english grammar?     She looks like 70 years old. Perhaps older.   How about the question above? Is it correct? Is there any book that can be used references for wide range of topics in grammar(including syntax, morphology et cetera)? I have finished oxford grammar in use recently and think it wasn't enough for me. Is there a DSLR fixed lens camera? I want to remotely control my Android device from my PC without rooting it. Is this possible? Two parties are trying to resolve some dispute that involves interest of both. Sometimes it's hard for them to reach an agreement on a fair basis. This is typically when another party who has no interest involved and no bias towards either party comes into play in order to settle the dispute between the two conflicting parties. The term "third party" seems being used quite often. I would also call it a "middle-standing" party or we could say this party is neutral.  These terms seem NOT formal enough to me though. I'd like to see if anybody can come up with a better one. Activity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44f72ff0 that was originally added here How to show $A\times (B\cup C) = (A\times B)\cup (A\times C)$ I'm embarking on a journey to create a conference abstract book using XeTeX and got stuck within five minutes:        The missing 'g' in 'somethin' influences the line height of the following line. How can I correct this?  At the end I want to be able to include the abstracts and corresponding information through our online registration system, so this should be a global setting.  My MWE:  \documentclass[10pt, a5paper]{article} \usepackage{fontspec}  %% GEOMETRY \usepackage[left=2cm, right=1.5cm]{geometry} % to change the page dimensions  \newenvironment{AbsHead} {     \fontsize{16}{22}\headfont\noindent }% {     \vspace{0.5 cm} }  \newenvironment{AbsAuthors} {     \fontsize{12}{14}\authorfont\noindent }% {    \vspace{0.5 cm} }  \begin{document}  ￼￼￼￼\setmainfont{Minion Pro} \newfontfamily\authorfont{Helvetica Neue Light} \newfontfamily\headfont{Helvetica Neue Condensed Bold}  \begin{AbsHead}The XIAP  something something something somethin somethin somethin somethin somethin somethin somethin something something\end{AbsHead}   \begin{AbsAuthors}Somebody Someone\end{AbsAuthors}   \noindent Purpose: Lorem ipsum \end{document} The question Is there any way to automatically scale and put an entire document on an A0 page? The thesis for which this is to be done is available as LaTeX code, as well as PDF output. Of course I know it is possible to do this manually, but I would prefer a LaTeX solution.  A small background Our university introduced a new page limit for master theses. This is not exactly appreciated by the teaching staff as well as students. To make a little joke, we decided to try to arrange an entire thesis (of approximately 200 pages) on a A0 poster, put it up in the hallway, and put a magnification glass next to it with a note saying: &quot;New page limit introduced: 1 page maximum for all upcoming theses!&quot;  The final result As some of you asked for this: below you can see a picture of the final result. (I &quot;professionally removed&quot; some of the sensitiv information.) We presented the poster during my final presentation and everyone liked it a lot! Now, it is on display next to my office and is still attracting some attention once in a while. After Factory Reset, In order to use Play store and Gmail I want to setup Google account on Samsung GT-S6802. When I tries to setup Google Account, In-spite of right user-name and password, following window appearers:    When I open gmail form browser, I've mail from google subject:Sign-in attempt prevented and says:     Someone just tried to sign in to your Google Account hidden@gmail.com from an app that doesn't meet modern security standards.     When I review, it shows unknown device but on browser it detects my device.  So, How do I face this issue and setup google account? How to remove feeds from WordPress totally? I want to completely remove feeds from WordPress. I am using this little function from    /** * disable feed */ function fb_disable_feed() { wp_die( __('No feed available,please visit our &lt;a href="'. get_bloginfo('url') .'"&gt;homepage&lt;/a&gt;!') ); } add_action('do_feed', 'fb_disable_feed', 1); add_action('do_feed_rdf', 'fb_disable_feed', 1); add_action('do_feed_rss', 'fb_disable_feed', 1); add_action('do_feed_rss2', 'fb_disable_feed', 1); add_action('do_feed_atom', 'fb_disable_feed', 1);   Still there is tons of transient options.. like _transient_feed_mod or _transient_timeout_feed_mod  How can i completely remove feeds from WordPress? How can I move or force a program installation to another location, even when unsupported? I have an SSD as my main Windows drive, with a 640GB 2.5" HDD, partitioned to store programs and user settings, and also to act as backup (it's the only thing I had lying around at the time of building my PC).  The problem is that whenever I install a program, it installs to C:\Program Files [(x86 for the 32 bit programs]\, although I have changed the environment variables. This wouldn't normally be an issue, however every installation program points its shortcut to my 640GB HDD.  The root layout of both drives:   To clarify:   Program files get installed to C:\ Program shortcuts are always pointed to Z:\, my 640GB HDD   Modifying the relevant environment variables doesn't do anything, I looked at , but however it only talks about modifying the registry and environment variables, which I have already done so.  I install to the Z:\ drive if the installation program lets me change the installation path, but however the installation programs sometimes don't let me change this.  Is there a way that I can force every program to install to the relevant location on Z:\, but at the same time move any programs currently installed to the new location? Perhaps I'm missing something here?  My target is to have every program installed on Z:/, with only the core Windows operating system on C:/.  Found ; would it be appropriate to use in my case? I would be able to move the entire Program Files (and its x86 version) to Z:\, without impacting on the performance.* Pseudoinverse and norm Suppose the m * n matrix A =$ \begin{bmatrix}     A_1 \\A_2 \end{bmatrix}$ where A1 is a nonsingular square matrix (n*n) and A2 is an arbitrary matrix. Why is $||A^{+}||_2 \leq ||A_1^{-1}||_2$  ?   ($A^{+}$ denotes the psuedoinverse) Maybe a stupid question but how can I tell if I have a static IP address or a dynamic IP address? Running Fedora-13 How to separate iMessages with shared Apple ID? My son and wife both have iPod Touches and I have an iPhone. We all used the same Apple ID and turned on iMessage. Both my son and wife were getting texts from my friends and my work on their iPods, I think because my cell phone number was linked to the Apple ID.  If I just turn off iMessage on my iPhone, will that solve the issue? SQL to LINQ Tool Is there a tool out there which can convert SQL syntax to LINQ syntax?   I just want to rewrite basic queries with join, etc., to . It would save me a lot of time.