system specs:
amd thunderbird xp processor 1600+
epox 8k7a+ motherboard
amd 761 chipset
512 mb ddr ram
geforce 5700 ultra
400 w power supply
xp pro
(i have downloaded newest chipset drivers and flashed my bios)

When i start my computer it says that card isn't recieving enough power but it adjusts itself so i guess i will be getting a new power supply however biggest concern is in games. It doesn't matter what game I play (everquest) is my big one it will play for like 5-10 min then completely lock up everything. temp on card is low but temp on processor is between 110F 119f had a ati radeon 7500 that worked fine and couldn't get radeon 9600xt to work any suggestions

While making the post above my screeen flickered multi colored line and went blank now when i start window it tends to do this everytime

First replace you power supple even if the card can adjust itself it could still cause problems. If this doesn't work make sure that you have the latest drivers download them. If you’re still having the problem please let me know and I'll see what else I can do.