G4 12" mini DVI to VGA external monitor does not display

I have hooked up the mini adapter cable and hooked up the VGA cable to a Dell P780, which the apple recognized. The monitor acts like it is going to come on, but then appears to go into sleep mode... The G4 is functioning as if the monitor is working.
I hooked my PC to the monitor, and it works fine.
I have tried two different monitors.
I have reset the PRAM and NVRAM...
Before I set it on fire, HELP.

Are you using the mini DVI to DVI followed by a DVI to VGA adapter? That may not work if the mini DVI to DVI adapter does not pass analog video. If that is the case, you need the mini DVI to VGA adapter:
<http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/wo/2.RSLID?mco= 17927D0B&nplm=M9320G%2FA>

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