help! mac pro + dell e207wfp= screen cutting out

Hi thepagman,

just some ideas. It is only one display that flickers? Then try switching the video ports. Swap the video card output of one monitor with the other. If the monitor still flickers, it is most likely the monitor or the cable (you can exclude this by switching the cables as well). If now the other monitor flickers, it is probably the graphics card.

Hope that helps, Lars

12" PowerBook G4 - 1.25 GB RAM - Mac Pro - 2 GB RAM - Mac OS X (10.4.9) - 40 GB iPod 4G

I have developed this problem recently on my Mac Pro with two Dell 2407s. The screen goes black on each then comes back to life. The Dell's report no input when they go black.

As I also run Windows XP under BootCamp on the mac Pro I was able to confirm this WAS NOT happening under Windows XP so was able to rule out hardware as the cause.

I didn't find an answer to the problem online so called Apple Support.

They had me move the Desktop Folder in my Users\'username'\Library\Caches folder onto the Desktop and then do the same with the com.apple.desktop.plist preferences file from the users\'username'\Library\Preferences folder.
Then restart the computer.

So far it seems to have fixed the problem. They indicated the files moved to the desktop could be deleted as OSX generates new preference files when restarted if it can't find the originals in the correct place.

I hope this helps.