Monitors go blank - have to reboot - could this be a virus?

[Guest]

Over the past 24 hours two of the computers in our company have had the
monitors go blank while using Internet Explorer. The monitor light in the
bottom right hand corner goes from green to amber and we have to reboot by
turning the PC off and on again.
McAfee was running latest definitions. No viruses found.
Ran Ad-Aware – 63 critical objects found and removed. (FYI … up until about
4 months ago – every time that I would run Ad-Aware it would find no more
than 5 to 10 objects. The past four or five times that I have run it – it
finds over 50 objects.)
Ran Stinger – nothing detected.
Any suggestions?

 

[Tim Slattery]

Over the past 24 hours two of the computers in our company have had the
monitors go blank while using Internet Explorer. The monitor light in the
bottom right hand corner goes from green to amber and we have to reboot by
turning the PC off and on again.

The LED turning from green to amber means that the monitor is not
getting a signal from the computer. That could be as simple as a
hibernate time-out being reached (right-click the desktop background,
click "Screensaver" tab. Is "(None)" selected in the "Screen Saver"
box with a short time-out interval in the "Wait:" box? That could shut
things down unexpectedly. In that case you should be able to wake the
machine up by moving the mouse or hitting any button on the keyboard.

Also, in that same box, click the "Power..." button on the bottom.
What's in the "Turn off monitor:" box?