Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X
I origninally downloaded Creo 64 bit to my Win7 64 Bit machine and used it for a couple weeks to a month or so. Then one day it just decided it was "no longer compatible".
On a whim I downloaded and installed the 32 Bit version and it works fine. WTF?