|How do I...stop display on my Viewsonic PC monitor suddenly jumping about. This happens no matter what application I am using -Excel, Yahoo mail for instance. None of the hardware or software is new and all has worked satisfactorily for years. I use Windows XP.|
The display suddenly moves up or down violently, it may then stabilise for a while. Seems to get worse longer PC is logged in.
Any help would be greatly appreciated. I use my machine for voluntary work as a Scouts treasurer.