Fuck Securom (Error 5003)
I bought Crysis so I could play a Mechwarrior mod with it. When I tried to start it, a window popped up saying:
A required security module cannot be activated. This program cannot be executed (5003).
One of my friends located the explanation. Indeed, I had IDA Pro running in the background.
Good job, guys. That will really prevent piracy, a lot. You are great at what you do.