My 2709w intermittantly blacks out the screen for a second and come back on with a small DVI symbol in the upper left corner of the screen.
I used to run this monitor with a Latitude D630 and it was great now I changed to a Latitude E6410 running Windows 7 with a e-series docking station and have these problems. It looks as if the monitor does not get a robust signal from the new Latitude E6410.
Is there anything I can do?
check that the DVI connector is firmly connected to the monitor and docking station - use the screws on the connectors. I had same problem today and that fixed it.