What have you guys done to my PC?

[Volksieg]

Ok...

I haven't posted on here for a long time now...

My PC was virus free, is as secure as it possibly can be and was working absolutely 100% until I allowed Steam to install the new patch.

As soon as I clicked "play" to see how the new patch worked, I suddenly found I have no sound (Works fine for everything except Cliffs of Dover) and my monitor is now no longer identified by Windows 7, saying it is a generic non-pnp monitor! I also had to restart the PC with a hard restart as, when doing it via the restart button, it came back with a black screen.

I have not installed anything recently apart from the new patch and a photograph from my camera. The new patch is the only change to my system.

Coincidence?