PC : 1.5gig AMD Athlon, 256 RAM, 32MB SiS 300/305, 35gig HD. I am trying to install this new graphics card ive bought nvidia geforce MX 4000 but i have a big problem. Firstly even though in the manual it says it is compatible with AGP2x/4x/8x slots it wont fit into my AGP4x SLOT! (after i remove my previous card). Infact it only fits into the PCI slots that i have. Ok after i uninstall old drivers, put it into PCI slot and screw it in.. i turn my computer on the monitor do not receives any signal from video card. Infact the red light (signalling hard drive access) doesnt even come up meaning that nothing has started (not even BIOS).The only light i see is the green one signalling power to the PC. THen i remove it and install my old card and everything is OK! Why is this happening to me P.S-maybe i need to download drivers for PCI based cards?