Hey everybody, I'm new here. I decided this would be a good spot to get some answers. Here's my problem: my main computer started locking up a lot and I found out it was overheating since the fan on my power supply wasn't turning on. I got a new power supply and installed it (Atec 400W for an Athlon processor) and now I'm having some odd problems (note: I was having these before the power supply swap). When I turn on my comp for the first time during the day or after it's been off for a while, everything turns on but the monitor says "no signal." I have to power off and on a few times to get that to work. Any ideas what could be causing that problem? And if so, any solutions? Thanks for your time everyone.