Bizarre Problem with iTunes and my iPhone.

[TorontoLRT]

Whenever I plug my iPhone into my PC, I get an error saying "iTunes requires a newer version of Apple Mobile Device Support. Please uninstall both iTunes and Apple Mobile Device Support, and then install iTunes again." I've done this three times now, even going so far as to delete every Apple related file on my computer, disconnect my iPhone from the network, and reboot the computer, but nothing helps. After I reinstall iTunes, it no only immediately finds my entire music collection (which suggests I improperly deleted some file) but gives me THE EXACT SAME MESSAGE! I'm at my wit's end trying to solve this problem. PLEASE help!!!