The misaligned eye will deviate inwards or outwards. This causes the joint to become slightly misaligned over time due to loosening bolts. When a memory access is not aligned, it is said to be "misaligned". It may be misaligned or rotated, and cover parts of up to four neighboring texels. Dislocations are linear defects, around which the atoms of the crystal lattice are misaligned. Circuits work properly even when the inputs are misaligned temporally. A misaligned drive head was rare usually fixing itself by smashing against the rail stops. However the bulges can be slightly misaligned with respect to the direction of gravitational attraction. The discs are slightly misaligned to increase constriction. In general, a twist occurs, causing the edges at the last joint to be misaligned. Finally, the boards are visually inspected for missing or misaligned components and solder bridging. Sensors determine if any of the heliostats is slightly misaligned. Iomega Zip drives were prone to developing misaligned heads. Eyes that remain misaligned can still develop visual problems. The misaligned bolt was not replaced.