Quote Originally Posted by Mr_P View Post
Also - if you're trying to use a TH2G-D in Dual Head mode (as it states on the documentation) - it wont work on a mac... only PC

S
there is a control panel- that you have to download to set it up-

and yes -then it may or may not work.

http://www.matrox.com/graphics/en/gx...gital/home.php

Systems operating under Mac OS® X must download the GXM Control Panel to access all DualHead and TripleHead resolutions
the thtg-d doesnt have an external psu - its usb powered - so that might make a difference in grounding things too.