I just got a GRD II in Hong Kong and used it to take shots in Asia. I didn't have a chance to play with all the features much until I got back to the States. I just found out how to turn on the electronic level, and noticed that when i sit the camera on a level table, it is not showing as level, but one "notch" off. Is there a way to go in a calibrate the level, or is this something I will just have to live with?