[sphincter]

i experienced the same problem today. FYI, i only needed to delete the newly created inbox folder (it does not have any files in it) to make it work again. i think the problem was that i had too many text messages or emails, and the phone tried to create a new inbox folder to store the new ones (just a theory, as i didn't have this problem before, and i've had my phone for 9 months). thanks!