Let the buyer beware. The ATI Radeon 7000 can't drive two Apple 
analog displays simultaneously, despite ATI advertising CRT + CRT as 
one of the 7000's display configurations.

Why? The included DVI-to-VGA adapter doesn't support DDC monitor 
sense. Apple VGA Studio Displays happen to _require_ this missing 
monitor sense. Mine certainly do. Without it the 7000 reports to 
MacOS that a VGA Studio Display is connected to the DVI port, and 
MacOS allocates desktop space to the Studio Display, but the display 
never receives a VGA signal it can use. Nothing appears on the second 
Studio Display screen except the reflection of a frustrated face.

For example, my Radeon 7000 was unable to drive two VGA LCD Studio 
Displays simultaneously using explicitly supported OpenGL 1.2.4 and 
QT5.0.2 on explicitly supported CPU hardware and OS.

[Actually I tested from within to well-outside ATI-supported 
configurations, using MacOS 8.6, 9.1 and 9.2.2 on platforms of 20th 
Anniversary Mac G3-500 and Beige G3 266 and 300 MHz. Any Studio 
Display connected to the DVI port invariably remained black, while 
the OS invariably allocated a 1024x768 desktop to that display.]

Despite due diligence before the purchase, I discovered the 7000's 
incompatibility with multiple DVI-to-VGA issues only on the CDROM 
readme. I was unable to find this issue last week on the support 
website. Perhaps ATI had just discovered the issue, and the CDROMs 
went to press before the ATI web site was updated. Feh.

ATI should have had a clear winner in the Radeon 7000 feature set, 
but they failed in execution. Caveat Emptor. Too bad NVIDIA doesn't 
make PCI cards for Macintosh.

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