I just bought the upgrade to MC 12 since my beta expired. When doing this I noticed a minor issue with the workflow.
1. Started MC 12 and got the screen saying my trial period expired and I need to purchase.
2. Clicked the purchase button, which opened a browser window to the MC purchase site.
3. Filled in all the info and made the purchase.
4. Got shown the new license key screen and clicked on it.
5. MC shows a window above the still showing trial expired window that says the new license was accepted (BTW, this little popup was skinned).
6. After the little popup went away the trial expired window is still sitting there without a way for me to start MC. I assume at this point I should be able to cancel and restart, but it'd be nice if it happened automatically when the license was accepted.