(from the daily kos)
"If you are in Philadelphia, PA and you click the box for Obama, and then click straight Democratic ticket, it will cancel out your vote for Obama. No one is quite sure why, but it’s happening . I just talked to the Obama campaign , and they are urging folks either to just vote straight Democratic ticket , or to choose each candidate individually- but not both. Please Digg and spread this piece of information to anyone widely. My understanding is there are Obama folks in Philly trying to work through this problem, but please let anyone who might be voting know as well. Sorry for the shortness of this diary , but I just wanted to get the word out there."