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My computer won't recognize my monitor after unhooking for a couple of hours

Last response: in CPUs
a b à CPUs
a b C Monitor
November 23, 2010 11:33:12 PM

This will sound strange. I have a powerspec computer and sceptre monitor. I unhooked everything to move it, and now the computer will not recognize the monitor. - light on the monitor flashes but not display - computer is clearly doing start up. Everything is hooked up right. I remember when we originally hooked it up we had the same problem, and the store told us to do something that worked. I can't remember what that was???? Any help?
a b à CPUs
a b C Monitor
November 24, 2010 4:06:48 PM

is it hooked to an integrated video port, or a discrete graphics card?
More importantly, does the PC have both or just one?