Loaded Windows 7 on an IBM T42 laptop. With a little work I was able to get "most" things working properly. The things I can't get to work: Trying to run WMV files on Media Player locks the system down hard. (have to take battery out to shut off)Trying to run any game that came with Windows (like hearts or solitare) locks the system down hard.When I try to run the program that ranks the system performance of my machine it locks the system down hard.If anyone has any suggestions on these problems, let me know. I was able to install Office XP and everything on it works fine. I was able to install Nero and it appears to work fine. AVG free works fine. Firefox works fine.