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PC to TV connection problem, no signal using vga

Last response: in Graphics & Displays
April 28, 2012 6:06:46 AM

I have an Dell Optiplex GX520, I had it plugged into my son's Curtis 24" LCD HDTV via vga and it worked fine. I had the pc sent in to be cleaned out and upgraded from windows XP to windows 7 and now when I try to connect it again using the vga connections it begins to start up ok but before the home page comes up, the screen goes blank and the tv screen say no support but, when I start it up in safe mode with internet connection it comes on fine all the way. What should I do?
a b U Graphics card
April 28, 2012 6:33:00 AM

Change the resolution of the display on the computer.