Not really sure what to look at. I have changed out three different monitors all Samsung's but different models, In addition, I got a replacement card and put the card into a Win2k machine. Still cannot get 1920x1080 in DVI mode, no problem with VGA though. I tried using the CD version of VL 6.0 but it would not display as well, probably need to install, it did show 1920x1080 HD as an option just could not get it to show guess it needs to write to the xorg.conf to display.
Any ideas before I take the plunge (I rather wait because I have samba running as a server and hate to have to set it up again).