Okay, let me clear up albaleman's situation.
First, I owe albaleman an apology. When you posted a new registration on October 25th, I missed the fact that you were making a state change as well as a party change. It is not like me to miss details like this, and for that I am sorry.
The law is, you may change regions once every 180 days, except that new registers may make a change in the first seven days. An attempt to change regions in less than 180 days, as you have done, results in the move being pending until the 180 days is reached. Thus, your move to Mississippi becomes valid on April 7, 2011. Until then, you are registered in Minnesota. You are free to cancel the pending move if you wish to.
As this occured during my watch as Registrar General, I have updated the Voter List in the Census Bureau thread to reflect this:
I will notify the new RG of this change. Again, please accept my apologies.