It seems trivial, but sometimes unplugging the computer (even from the UPS, if any) for a few seconds will resolve an issue where the computer does not properly boot, or even load the system BIOS. Plug it back in and see if the HP logo/BIOS screen appear when you turn it back on. If so, but Windows doesn't load, it's an update issue. If nothing appears it's most likely a hardware issue.
OK...just bought a new (refurbished) computer from Fry's.
HP running Vista Home Premium 32 bit with 3gb memory and an Athlon X2 6000 processor.
I am using the monitor I used with my last computer, a flat screen from Acer.
When I hooked up the new computer today, everything was working great, including the monitor. At some point when the computer was updating through Microsoft Live Update, I did see it say something about a driver for the Acer monitor...The update downloaded and everything was still perfect.
I was installing Norton and had to leave for a couple hours and when I came back the screen was black but still on. The orange light was on and when I turned it off and on it said "no signal." I played with the connections and turned everything off and on and restarted the cpu and nothing worked.
I tried the monitor on the previous computer and it worked. Tried it again on the new and the same thing--doesn't even know it's there---no signal.
Now, the VGA connector (or whatever comes out of the back of the computer) seems to move a little and has a little bit of play when I plug the monitor in. I don't know if the connector is faulty.
The thing that's weird is that it was working great just a couple of hours ago. And it still works on the old computer.
What is the deal?