Have anyone can help me to solve this problem? The Sales said that "Radeon 9600SE" can run on mainboard with AGP 4X compatible. so I bought this card and installed on M930LR mainboard, but when I power on my computer the monitor screen become non-stable (some characters is flashing and some straight line form “Z” moving across the screen) a few second later then display "please check your VGA cable" How can I solve this problem? When I do this, I know that indicating something is wrong with the video card and the monitor won't even come on. So I put the Geforce2 MX400 64M VGA card back in and the computer works fine. I don't know this problem is whether concern about the power supply unit, because I had installed 4 IDE devices (DVD, CDRW, 2HD) on the mainboard. My computer specification: P4 CHIPS ATX MAINBOARD INTEL P4 1.6 (Socket) 512 DDR RAM I know my little explanation of the problem above is a bit confusing... but the problem confuses me... so that's the best I can explain it. Any help would be greatly appreciated. Thanks.