Okay, well I just recently tried updating my iMac. I haven't updated in a while, so I needed to do stuff like Quicktime 7 and the 10.5.5 update. Anyways, after restarting the installer got stuck in the same place so I did a hard restart with the power button. It took it a while to restart, so I'm worried I may have messed something up. What do you guys recommend I do? Is there a way to reinstall 10.5.5 maybe? Or something?