seeking help. Have a Sony PCV-RS520, past warranty. Working properly last night, this morning, system (from the PC tower) light was on, no signal on monitor. After hard power off of the PC, I tried to restart the machine, (as many had posted before), power on, fans on, just no signal on the screen. I tested the monitor with my laptop, it works properly. I also tested the graphic card by putting a brand new card in, same problem. I concluded that it's not the graphic card. I also tried to re-seat the RAMs (2x256) and graphic card, nothing changed. I am not very familar with the PC, so haven't tried to reseat the hard drive, motherboard, etc. I had a bad feeling that this is going to be ugly--besides the money to spend on whatever software, I will probably lose the photos on my hard drives. Are there any suggestions as to what's the problem? I tried to follow the earlier posting, but didn't seem to see any resolution other than getting a new motherboard or hard drive. Help!