I'm getting the same problem. After the monitor ran fine in DVI mode for a few months, then all the sudden one day it refuses to run in DVI mode and gives a blank screen. However, it's able to run in the VGA mode.
Check out threads such as
http://forums.us.dell.com/supportfor...ing&page=1
I'm also trying to get this problem resolved. [img]/images/graemlins/frown.gif[/img]