pixelsoul wrote:
does anybody know what the problem could be
WinXP.
It sounds to me like you have a TSR program that is taking up resources. A TSR is a Terminate and Stay Resident program that loads when you boot up and stays running in the background. Go into your START MENU and turn off any programs that you don't use or are running. Also, you might want to run a good virus scan. Some virii are made specifically to do what you say is happening so make sure you're clean.
On a more-or-less technical approch, make sure that your CPU and graphics card fan are working properly. Overheating in any of these areas can have the same results.
Dave Baer
Professor of Digital Arts
Digital Media Arts College
Boca Raton, Florida
dbaer@dmac.edu