Radeon 7000 PCI constantly crashes on 9.2.1 (Desktop G3)

[Kurasiu]

Greetings everyone, I'm having a bit of a problem here...
I recently bought a Radeon 7000 PCI (Windows version) and decided to throw it to my Desktop G3 Power Macintosh (running OS 9.2.1). I flashed it with the reduced gotoh ROM ('reduced using new method' one), and followed this tutorial to get it working (installed the Rom Xtender from the 9200 ROM update, and 7000 drivers/extensions after that).
At first I thought the card's working just fine (booted up, display works fine, the card is shown in the profiler), but then I noticed my Mac crashes every time it tries to launch a 3D application (Bugdom, The Sims, Quake, to name a few). They all worked fine on a Rage 128GL I had before.

Any clues what's happening there? Should I flash it with a different rom? Or maybe there's an extension/clock problem?

[macStuff]

can u show a photo of the exact card you have;
i have a radeon 7000 - mine is a sapphire one;

there is definately a booby trap that radeon 7k users fall into
i have fallen into it a few times
my g3 would not work properly with the radeon 7k that i had flashed either
its now alot happier with a red 9200 pci i think
for whatever reason my 7000 wouldnt work well on a mac
i have flashed it back to pc and its in my pentium 75 windows 95 pc at the moment (not the best match either, but its the only pci video card i had for it)