link to test that proves this dvi port is not dual link please. A lot of us are watching this thread for this specific test. I know there was one test on some french forums but it was never established if an actual dual link dvi cable was used, and we do know he never used the nvidia control panel to force the custom resolution, he just tried to personalise the settings through the built in windows display settings control panel. Sadly he had sent the unit back when the flaws in his test method were pointed out so our current hope lies with TimShadler.
Im pretty sure it hasn't been proven yet, the closest thing we've gotten is a comment that its single link from an acer rep at IFA who was described as being unsure when pressed on the matter. To my knowledge a proper test has never been performed (I've been using my google-fu for weeks trying to figure this one out)