Monitor goes offline for a few seconds while using Excel spreadshe
 

I have a Dell Vostro desktop computer with dual output video card designed
for this model. When Excel is open (haven't noticed this behavior on other
applications) one of the monitors (a View Sonic 24') goes blank for a few
seconds, then comes back on. I have tried re-setting the refresh rate and
resolution size but the issue remains. It seems odd that this is only noted
while in Excel, but have not seen it otherwise.

Anybody have a similar experience?