Walshy said:When you say freezes, do you mean stops completely and requires a reboot, or temporarily pauses then catches up ?
If it's the latter, are you running lots of other applications in the background at the same time (messenger, realplayer etc) ?
You could be running out of memory/process capacity and the system pauses while it pages memory.
Do you know how much RAM you have in your PC as Windows XP is quite memory hungry ?