Now tell about all those drivers you installed like motherboard, video and more. Let's see if you got them all.
I recently installed XP, and found I had a problem with Paint Shop Pro. I still have PSP5 and thought it may be incompatible, but it runs OK on a friend's PC with a similar setup.
Initially when the program opens, on an existing (large) file, when I try to do anything (copy, draw a line etc) PSP just freezes for say a minute. It then clears, allows me to do the action. I try again, same thing. About the 4th time, freeze time is much less, and by the 6th time everything is normal, and will continue to be so until I close the program.
I took a copy of the performance graph during this period. Looking at the graph, it's evident that the (yellow) memory trace goes up to 100% and stays there till it releases.
Any idea what is going on? I have tried running Rambooster during the freeze but appears to make no difference.