Or try the monitor on another computer.
If another monitor doesn't work, then your graphics card may be shot. Replace it or replace the desktop.
Since it is an older computer, you may want to find another so that you can use the parts you have left over.
Hi, when i turn my computer on, my monitor goes blank. Sometimes nothing comes up on my monitor at all, other times it may get as far as the XP loading screen, then it will go dark. I have a SONY VAIO PCV-RX580 - the computer's about 7 years old. Do you guys have any ideas of what's wrong and how I can fix it?
I have two hard drives in the computer, and so far I tried disconnecting one and setting the other as the master drive.