Computer has died, need fix now.

Computer has died, and I'm leaving in 3 days and won't be back for 3 weeks. I want the computer running because it has lots of content I can use remotely. It was fine until I opened it up to clean the air filter and dust off with compressed air. I also installed a floppy disk because I need a RAID driver during Windows install and I wanted to format and reinstall it tonight. After  I finished I hooked it up and it booted fine so I shut down to close up the case and all of a sudden it won't get a video signal anymore. I've tried analog and DVI connection, I cleared the CMOS, I disconnected all peripherials except video. I get no beep codes, Num Lock functions normally. I think the video card is dead since but I don't have another card to test. I'm in a dorm and all my spare stuff is at home. Does anyone have any last suggestions?

BTW, i'm posting from my 600mhz Celeron laptop.