That is not a good sign, take the side case off and check your connections. The first thing I would look at would be (IF) you are using a stand alone video card, to see if the card may have worked out of the slot, could create the issue. If that is NOT the case, check the memory cards to be sure they are seated and all other connections. Good luck!
I just moved and when I unpacked my Vaio PC, set it up and turned it on for the first time, it emitted a continuous beep tone from the tower and there is no image on the monitor.
This seems really bad to me.
Any suggestions would be *much* appreciated/