Hey guys, new to forum and would appreciate any thoughts on my current situation... My problem is that when I turn on my pc, I get no display at all. This started yesterday without any warning. I had the pc on for a few hours in the morning, powered down & later on I tried to power-up and got no display at all. I tried a different monitor, different v-card, mouse (non-wireless), keyboard (all are known to be ok) - no luck! When I power-up, all of my fans (case, processor, power supply and v-card) start, my harddrives run, my optical drives have power (can open & shut the doors) but I just don't get any display at all. I also don't get any sort of post beeping. I pulled out my RAM (RDRAM 4x256) just to see if I'd get any error beeping, but I don't get anything. I removed the battery and reset the cmos, I even bought a brand new battery and installed it. I re-seated the proc, but that didn't help. One curious thing is I don't get any lights on my keyboard, nor do I get a light on my wireless mouse receiver. I'm thinking something has gone wrong with my motherboard - I can't swap it out with my parts on hand. I was thinking the PS was bad, but I get power to everything in the case, and I can't swap it out right now either. The PS is a Chieftec 420w. This is kinda frustating - it's my son's PC and I am known as the one who can usually fix anything PC related, LOL! Any help would be greatly appreciated. Listed below are the pertinent PC specs: OS: WinXP Home MB: Asus P4T533-C PROC: Intel P4 2.8 ghz MEM: RDRAM (4 x 256mb) V-CARD: Nvidia 6800GT 256mb HDs: Maxtor 80gig EIDE x2 OPTICALs: Liteon 52x CDRW, Pioneer DVD-R 4x PS: Chieftec 420w SOUND: Soundblaster Live 5.1 Once again, thanks in advance!!