So I recently bought Crysis on EA Store, and when I tried to play it, it came up with "Insert Original DVD/CD" as an error. I don't really have a dvd because I purchased the digital version, so whats up?

Is it possible it had something to do with registering when you install it? (I didn't register, thinking it was like online)

Hmm, don't know about that one. Maybe try one of the No-CD cracks.