Building PC for my sis, very similar to the one in my sig below. Black Ultra Kt-400, AMDXP2100+, Antec case w/antec psu, 512mb Crucial RAM, Gainward GeoForce 128mb card w/8x AGP. Go to power up, psu lights up, all fans come on, CD's/hard drive come on but no video and I get long beeps. Like one long beep, than a 10 second pause, then another long beep. Manual says check the vid card and memory to make sure they are seated properly and I did that. I reset the CMOS, still nada. Anything else I might be missing?