I hope Obsidian will fix all those bugs
Like alot of people I have a major bug in KOTOR II, were the game all messed up after T3 get shotted in the mining facility. I have the retail version and my xbox is unmodded. Then I hear ALOT of this case in forums, black screens, general freeze in loading time, error in variables, plain lockup and bugs in sub-quest. I think Obsidian did a VERY POOR job at game testing and bug squashing. I really hope that they will released a patch for Xbox Live or I definitly won't buy any Obsidian game ever again. I hope BioWare will come back and make Kotor III.