Tower shuts down when monitor is plugged in.

hello,
I recently unplugged my monitor from my powermac G4 while moving the computer and when I tried to turn it back on it wouldn't start at all. I checked all connections and realized that the tower will turn on but once I plug the monitor into the back, the computer shuts down and makes a small click like a fan is stuck. I've tried reseating the graphis card and also resetting the button next to the battery.
Any suggestions would be greatly appreciated.
powermac G4 Mac OS X (10.4.6)

acomet:
That's usually a classic symptom of the need for a PMU reset/loss of startup memory, although it could also be related to a deeper issue.
One more try...
Deep reset the logic board:
Disconnect everything from the QS but the power cord.
Touch a metal slot cover on the rear of the Mac.
Disconnect the power cord.
Open the side door.
Remove the battery.
Reset the PMU, holding it down for a five count.
Depress the power button on the front of the Mac, holding it in for a five count.
Take a thirty minute break, to insure the capacitors fully discharge.
Reinsert the battery.
Close up, hook up, and attempt to boot normally.
No luck? Pull the battery out and attempt to boot.
No luck? Disconnect everything but the power cord, including the keyboard, monitor and mouse. Disconnect the internal drive cables. Attempt startup and listen for the startup chime. If it chimes, give it a few seconds and just shut down with the front power button.
Gary

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