Well, just to follow up on this, ironically, my pro scaler also has difficulty grabbing the DVI out from my PowerBook 5,8 or also Mac mini (when running MorphOS, or also OpenFirmware, funnily enough, but it works in OSX tho'), while VGA works perfectly. But of course with some quality loss compared to DVI, although still looks quite OK when recorded in 1080p@30, which is the best my older HDMI recorder can do. I do have a whole lot of EDID options tho', to play with on the scaler, so which I had no time for yet.

Weekend, hopefully. :)