I purchased Knights of the Old Republic 2 yesterday from target and loaded it and played fine, (on Vista), with no issues until today. I used the updater on the menu and after that the game wouldn't work, (disc error which I wasn't aware of til just now), so I uninstalled and had planned to reinstall it and just play without updating it only now it won't install at all. The first disc won't read at all and I am getting very frustrated. I really want to play this game, please help if you can.