Dual Monitor Problem and Questions

I have a windows 7 dual monitor machine and one monitor suddenly dumped out for some reason. In control panel, Appearance and Display, I check to see that Extend These Displays was the selection and for whatever reason, it's not even on the drop down menu as an option. I might think the display adapter took a dump but when the machine boots, I do get a message related to 'this monitor entering sleep mode' and then it's BLACK. Any thoughts on what might be causing this? TIA

I noticed that it had done some 'critical' Microsoft updates at 3am on the night before the problem showed up.

Yeah I'm going to try and restore it to a time before the updates and apply some HOPE ;-)

AddRAM said:

No clue what display adapter you`re using, but download the latest driver from either Dell, nVidia, or AMD and keep working on it.

Oddly enough, the card that's not working isn't showing up in Device Manager now (did before just fine).

Think that's a better place to start than restoring to a date before the update?