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		 i get "flashing" (and other screen gremlins) on my monitor at work, but it's because i use a KVM switch and crappy extension cables between the monitor, keyboard, mouse and the switch itself.  if you're using (shitty) extension cables or a KVM switch like i am, that could be a factor. 
 
and by the way, are you plugged into a well-grounded outlet or battery backup?  i know that if a fan or lamp is plugged into the same outlet as other equipment, it could cause disturbance. 
		
		
		
		
		
			
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				aaarrrrrgggghhhh!!!!
			 
		
		
		
		
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