I didn't unroot before I updated & everything went fine. As long as you didn't make any major system changes without putting them back first, you should have no problems.
Odd... I'm rooted, no custom ROM, but the update fails at install every time. I even went ahead and did a factory data reset which did not un-root, but still no update...
That's the issue. I removed that g-d blockbuster app, I think City ID too. The big oops is that I think I blew up the Titanium Backup folder. I'm pretty much hosed at this point...?