Download and install Desktop Manager 3.6 from the RIM support web site
Download and install Handheld Manager 3.7 from http://vzw.smithmicro.com/blackberry
Connect the BB to the PC BUT DO NOT START DESKTOP MANAGER PM me and I will send you "Javaloader"
After you get Javaloader, unzip it and put it in a known location (like C: ) so you can find it.
Open a DOS prompt - Start / Run / cmd
javaloader -usb wipe
After it is done, type exit
Start Desktop Manager. It should reload now.