Need a bit of help....

[Count Chocula]

I can start up the game (Icewind dale 2) and make a new game, but when i try to save that game or load a game, the game shuts down and a box pops up and says, "An Assertion failed at InfScreenLoad.cpp at line number 1592". The CD works fine on any other computer I try it on except for mine, so I don't think that the CD is scratched. I've tried re-installing the game a few times but that doesn't really help. I'm not a big computer person so I kinda feel like its something obvious, but anyways if anyone can help me out on that one that'd be great! Thanks a lot

Actualyyy, while I'm at it, I also can't get Icewind dale 1 to work. This CD also works fine on any other computer but mine. When I hit play a box pops up and says, "Error starting application. File IDMain.exe could not be found." Then another box pops up and says, "Error retreiving path information from the registry. Please run the application manualy by double-clicking on its icon in the windows explorer." And clicking on its icon doesn't seem to help all that much. Oh and when I tried to re-install it it said that the log file is not valid or the data has been corrupted , and that it can't continue with the unistalation. sooooo i guess I have corrupted data or whatnot. So help is greatly appreciated, thanks.