Wecolme Doug-
Your problem is very very common with 2007 X3 owners. This is a transmission defect.
It is not normal. You need to bring it to a certified SAV center as soon as possible. The dealer will do several reporgrams, and the issue will resolve itself and the car will drive normal.
I suggest you look at the following links:
http://bimmerfest.com/forums/showthread.php?t=203584
http://bimmerfest.com/forums/showthread.php?t=224576
http://bimmerfest.com/forums/showthread.php?t=209534
Good luck and keep us updated. :xoutpost: