Hmm, I just installed Painter 11, and wasn't required to activate (I disabled my NIC to make sure). Interesting. I could swear that Corel's latest stuff came with DRM. Guess I was wrong. However, there was a "Dear Reviewer..." letter from Corel in the package, so maybe they sent me a DRM-free special copy?
Oh well. At least now I won't be removing any points due to DRM.