Studio displays and G4

Will an Apple 21" studio display with the built in 4-port USB hub work with a sawtooth G4? I believe these have a 15 pin VGA, right?

I saw that your equipment configuration was the same as mine, and hoped you might have some advice on a problem that I posted this evening. Thanks in advance for any suggestions!
My 17-inch studio display CRT monitor (which was working fine) recently died, and I purchased a used, but 'swear-to-goodness-still-functioning' 21-inch studio display CRT monitor from Ebay to use with my G4/ACP Graphic/desktop Power Mac.
When I installed the new monitor, (connecting the three cables: AC power, VGA and USB), and restarted the computer I saw a clear (but horizontally compressed) band of picture about 4 inches wide running from the top to the bottom of the monitor for the first 30 secs of startup. Then the click of a relay and the picture disappears to leave a black screen. After that, all that happens is a constant 'fluttering' sound from the back of the monitor.
I tried restarting and zapping the PRAM, but no change.
Would welcome any suggestions on what to try next....
Power Mac G4 (AGP Graphics)   Mac OS X (10.4.7)   Graphite Studio Monitor 21 inch

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