@Superpunk: If you have any problems with 5.0 on your machine. (And I seriously doubt if you do)Then give me all the specs on your machine, what you are running in the background, etc. and I bet I can solve your problem. If I can't then someone else here can I am sure. I have run 2, 3 and 5 on this windows xp machine with absolutely no problems so I am guessing you had a conflict somewhere with a dll or another running process.
Anyway, good luck with 5, and let us know how it works for you....or doesn't!