I upgraded to 2.1 on Sunday and have experienced several problems (i.e., lost all contact information, a few apps, inability to set speed dials). I went to the Verizon Wireless kiosk where I purchased the Droid Eris and the representative couldn't help me fix the bugs. I had no problems whatsoever with the previous OS and would like to roll back to it, if possible. Can someone tell me if this is possible and, if so, how to proceed? Appreciate the help.