Having problems with your Dell OptiPlex GX270 PC Desktop ?

Mouse and Keyboard wont work after booting system?

\015 After having the monitor balck for most of the morning I just restarted the system now the mouse or keyboard wont work any ideas?\015

Answers :

First thing I would try is System Restore.

Start
Programs
Accessories
System Tools
System Restore

And go back to a date before this morning. This should take care of your problem most of the time.

Now when you say the monitor was black... do you mean because of the screen saver/power settings turned it black? Or did it go out on its own? If on its own, sounds like it might be overheating. See if it works once cold.
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