I have a laptop and a netbook, I'm using the netbook to describe the problem with the laptop.
I did a driver scan of the laptop and the list of outdated drivers included two mice/mouses. I recognized one mouse by name, and since I have no intention of using either mice/mouses in the future I opened the Device Manager, looked for hidden mice. I uninstalled the drivers, carefully leaving my Synaptics pointing device.
Then I carefully looked for other hidden unused drivers. I looked up each one on at least two websites to see what they were and what other people had said about them. One group of drivers belonged to Computer Associates, a service I don't use any more so I uninstalled them. Another group belonged to Norton Symantec and since I don't use them either I uninstalled those drivers. Then I went to a website to look up the next group of hidden unused drivers and while looking at the website the screen went black.
All appropriate power buttons on the computer were still lit. With nothing on the screen to guide me, I press CNTRL-ALT-DEL to shut off the computer so I could reboot. The computer didn't respond, I tried it again, then had to use the power button.
I left the laptop off for a few minute. The light that indicates the laptop is still plugged in to a power source was still lit, and when I pressed the power button the other power lights came on, and the computer seems to start up, but the screen stayed black. I left the computer alone till I guessed it went through the powering up cycle, then tried pressing CNTRL-ALT-DEL again, and again, the laptop didn't respond, so I used the power button to turn it off.
I am sure I didn't uninstall anything related to the screen or anything related to power commands.
Is there anything I can try to get my screen working? Is there a connection between not having visual and the machine not responding to the C-A-D command?