I upgraded to BB Froyo v0.4 and since then I've been having a lot of dropped calls. I've noticed two things before the call drops, either the phone gives me haptic feedback (vibrating slightly) or the screen lights up. Usually both. What I think is going on is that the phone thinks I've taken it away from my head and activates the touch screen. Then my cheek presses the hang-up button and ends the call. I have never had this problem on stock or BB Eclair v0.7 thru v1.1. Anybody know how to fix this?