All my parts had finally come in so yesterday I set about assembling it, thinking that once I got it together I would really have something to give thanks for. ;-) But, just as soon as I got it all together and plugged my brand new monitor into it I flipped the switch and low and behold: nothing! Nothing happened. The fans were spinning, but the monitor just kept flashing "no signal". So I set out to begin isolating the problem. I switched monitors, that didn't do it. I took the RAM out (Crucial PC-2100), disconnected the Plextor, AOpen, and 40GB Deskstar: still nothing. I took the Sound Card out (SB Live!), which left me just my AGP Card (which I tested on another system), my mobo (ECS K75SA), and my CPU (AMD 1.4Ghz w/ SK6 Heatsink & 6,000RPM Fan). My powersupply is 300 watts too. The only indication that anything is happening (since the mobo has no LEDs on it) is that the 3 lights on my PS/2 keyboard flash on and then off when I turn the power on. Does anyone have any ideas what is happening?