i have a problem that is making me crazy. i can use my computer all day long with no problems. i can use any application...i can even render landscapes and really work the cpu, memory and video and all is well. but if i connect to the internet (SBC DSL...Speedstream 5100 modem...Realtek 8139 NIC) i can count on having lockups. the screen goes a lime green or with diff color vertical stripes and computer locks. i have swapped memory(on-board video), added a PCI vid card, changed NIC's and nuthing helps. IE6 and Mozilla both do the same thing. any streaming audio will cause it also as well as AIM. sometimes it happens when i click a link or scroll a webpage. other times it is seemingly random. what gets me is that if i am not connected to web then the problems disappear. i connect using Enternet 300, but i can't imagine that causing it, tho i suppose anything is possible. any ideas? i am thinking video problems of course but why wouldnt the other apps cause problems?