I recently flashed my ROM with Peter Alfanso's GPA16 and it was a bumpy ride but eventually worked out. I just did the same thing to my wife's phone (both Droid 1) and it seemed to go OK. I installed GPA16, the CPU update, and a theme I found here just like I did on my own phone and it worked fine. Then I installed titanium backup and restored everything (I did NOT backup or restore most of the things in red that have to do with the previous ROM).
Now I have 3G and phone service but I can't download from the market. I can search for an app but when i click download, accept terms and conditions, it replies Error "Facebook for Android" could not be downloaded due to an error. This happens with any app I select or when updating YouTube.
I also have a notification that reads, 'Google Talk authentication failed.' When I click it: Authentication Error | Google Talk failed to login. If this is a Google Apps account, confirm that Chat service is enabled for this account.
Then I wiped Dalvik Cache with no results.
I did notice that under settings-About phone on good phone 'my phone number' and 'MIN' are the same but on the bad phone 'MIN' is different.
Is there anything I can try other than wiping and flashing? If I did that I would of course be more selective about what to restore with Titanium Backup.