Mine did the same thing this morning! I always sync up new podcasts in the morning before I go to work. Load screen with progress bar and no buttons work.
I like how all the "fixes" tell you to put it to sleep, update the software or erase everything. HOW CAN YOU DO THAT WHEN NONE OF THE BUTTONS WORK?!?
Right before I left for work the wife came down and I told her not to connect her Zune. She has a black 30GB and I have a brown 30GB.
Use the forum search function before asking a question that been asked thousands of times!