Need help on display card!

[info]

Hi guys,

I need some help on the use of a video display. I had a PowerMac 7600 
that had a ATI Mach64 video display card in it running to monitors. It 
worked great until the computer started to have other problems and I 
needed to replace it. I got a G3 266 mhz beige machine and put the 
same video display card in it and it would not work! One monitor would 
come on and the other would simply show snow! I tried a number of 
things with no change. I have been looking all over the web for any 
indication that there might be an incompatibility problem with the G3. 
All I can find is information on folks using pre-G3 machines with this 
display board, but no conclusive evident of it actually not working 
with a G3. Anyone out there used a video display card with a Beige G3 
to run dual monitors? Help!!!!!!!!!!!

Any idea where I can find conclusively what video card will work with 
my Beige G3?

Thanks,

Cal Conkey