when listening or watching in Utube for approx. 20 minutes, suddently a sharp humming sounds emitts and the screen,besides the current utube clip I am watching,the whole screen is filling with lines,dots etc. something like this: ----.--.. _---- -__--_....----- -- __- etc. in no particular order, then all freezes up,for fear that I may bust the speakers or cause damages I have to turn the pc off by the on/off button (the only way to turn it off now). Turning it back on I can continue, but after awhile the problem repeats. A technician has installed a new video card and fiddled around with it but after three service calls my technician evaporated and I am less $650 and still stuck with the problem. I am on a small pension and my meager savings have painfully diminished. Is there any help available in GEEK country???
Many thanks............
Henry
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