Battery drain after updating AmazGPS

[chrysalis]

My battery suddenly went downhill after I updated the AmazGPS program yesterday. Usually my Imagio lasts about two days after a full-charge. Now it will last less than 8 hours even without making any phone calls. Has anyone experienced such dramatic drop of battery performance? I uninstall the AmazGPS program but it does not seem to help at all.

I would really appreciate any help that I can get here. This is so annoying!