CSS not working in IE8, while working fine in IE9
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basically a majority of the CSS styles defined for my website are not displayed when opening the page in IE8. This is not only happening for my custom styles (which I load separately through a custom css file), but also for the built-in features of Rockettheme IONOSPHERE template, for example the box1/2/3/4/5/6 module styles. Also, the rounded style is not rendered, and all modules are shown with sharp corners instead. 

I am also using a custom css file (called ralph_golfanatics.css), which I load inside the index.php as follows:

$gantry->addStyles(array('template.css','joomla.css', 'ralph_golfanatics.css'));

All custom styles of this file are displayed fine in IE9, but the most important styles are not shown in IE8. Simply adding these css-styles manually in the file template_ie8.css (that file comes with the Ionosphere template package) did not change anything.

Looking forward to receive any help in this matter. The webpage is http://www.golfanatics.de

Thank you all in advance for your hints.

Ralph
