BleepingComputer.com: Installed new Monitor, now sound isn't working?

Hello, I'm new to these forums as a member (I've used your help via other people's topics)!

I recently installed a new Monitor, a NEC LCD1912, and now my sound isn't working, system or other generated sounds.

My sound is: "Realtek HD audio rear output"

I have:
-Not had problems with this device before installing the monitor.
-Updated my sound driver, in various ways to ensure it is properly updated and "signed" for quality.
-Checked all cables, they are plugged in correctly.
-Attempted to generate sounds both in and out of different games.
-Updated Monitor drivers
-Restarted several times, after each driver update.

I am in the process of rolling back and reinstalling the latest driver now.

I have not experienced an error of this kind before, so I assumed it had to do with drivers because of new hardware. I am a computer literate individual and can probably follow any advice given, but I am honestly baffled at this issue, nothing seems to be working.

Please help how you can, thanks in advance.

This post has been edited by theorchero: 26 December 2010 - 07:04 PM

Please give the guys your system specs and OS, the most plausible explanation is a driver conflict. Do you have on board sound? If so use the disk that came with your MB board? Many times just a quick reinstall of the boards drivers fixes things like this.