So Quartz Extreme was working fine but now it says "Not Supported". I've tried everything including reinstalling Natit..

Can anyone help?

So I tried reinstalling Ideneb 10.5.6 on another volume, which is what I originally had that worked with QE, and that doesn't work either. I can't believe I cannot get this working.

you're not alone. i manage to update from 10.5.5 and now i can't get QE to work.

Its noted on the Netkas website that the 2600 no longer works with qe/ci/opengl in 10.5.8 which really sucks. I wish I had read that before upgrading. I hope there's a solution soon as my desktop was running flawlessly until this.

not really true, i got mine working. see post.
http://www.insanelymac.com/forum/index.php...t&p=1235958

the link you posted if for 10.6