An FYI...
After attempting to register Q2006, a number of times, things just hung.
I called Tech Support (800-811-8766) and was told that Intuit was aware of problems on their end, and the tech instructed me how to bypass registration until Intuit comes out with a fix.
If you're having this problem, give them a call. Because it's an Intuit problem, no Support charges will be incurred.
Notan