every so often, screen just goes black

[wildman]

Maybe this will help...
Has anyone considered if the video is trying to switch between DVI and 
Analog.
That seems to be what mine is doing. Two machines both Intel MB one with 
nvidia and one with ati
video adapters, both with dvi/al connections, both monitors are also 
dvi/al .
I caught it by chance doing this when it went blank for a couple minutes 
giving me time to switch it
manually using the buttons provided on the monitor. When the dvi was 
off,  the al was on,
and when the al went blank the dvi was back on.
Once I do the manual switch it settles down and dosen't repeat  for a 
long time..

Haven't found the cause as yet, but I'm digging...(in way over my head too)
~Mike