When I try to run youtube or espn360 stuff, the video grinds to a halt after a few minutes. I can watch one or two youtube things before they don't work anymore. I've got a basic 2.00 GHz celeron with 256 MB of RAM and XP w/ s.p. 2. My 20 G hard drive is half-full, and my system restore is set to minimum. The only other big program running is my McAfee firewall. Is there some setting I can change or adjustment that will help?