Problems with dual monitors (like everyone else)

[Chaostracize]

I had my computer set up for all of May and everything was fine.

Took everything down and put it all away for two months and now that I've hooked everything back up, the left screen is dark, and after I booted up the computer I got a little note from Windows saying that my Ultramon trial has expired.

Are these related?

I just can't remember what I did to get this to work.