... show it to us again, except this time show a full screen, with the Process Manager up (one tab over on Task Manager). Because I can write a program in C++ that shows the very same error message. And plus...
PhysX? We use Bullet, PhysX runtime was too big.
hmm... Digmaster is right, it does add on to the mystery.
I see something fishy, but I may be wrong when I say that you're joking.