Originally posted by MacsRgr8
No problem 🙂
I don't know why Mac OS X is needed. Seriously, the 20" really works on a (non-ADC equipped) G4 450 Mhz, with the ATi Radeon 9000 Pro grfx card, using a DVI to ADC adapter (Dr. Bott's), because the G4 itself doesn't support ADC connections.
The 20" runs its native resolution, running Mac OS 9.2.2, with the latest release of ATi's drivers for their Radeon series for Mac OS 9.
I can't think of any reason why this display won't work on your configuration, running Mac OS 9.
I expect that your G4 is equipped with the nVidia GeForce 4 MX card? This one is also Mac OS 9 supported, ofcourse.
Isn't there any way a reseller could help you by letting you test a demo 20" on your G4?
Good luck!