I just got my Droid Eris. It was working fine to go back and forth between landscape and upright, until I calibrated the G-sensor. Now I'm not sure what's going on. I'm not sure if I've done the calibration correctly (I assume you just sit it upright on a flat surface?) or what. It will randomly go into landscape mode, but then I can't get it back upright unless I go to the home screen. Any suggestions? Thanks