I poked around and found similar issues but nothing exactly like what I have going on. My home/usb charger is the one that came with the phone and the car charger is the one I bought from VZW for the Droid. Whether plugged in to my pc, the wall or the car charger, when my phone rings the touchscreen works and I can swipe to accept the call. But I can't hear the caller and they can't hear me. They tell me that they know I answer because the phone stops ringing but they can't hear me.
It's the weirdest thing because I can text, email, browse the web, everything but accept a call. I can even make a call.
This is exceptionally annoying when I am in the car and have killed or weakened my battery using the nav. I plug it in, a client calls and I try to answer but am unable.
Any ideas? Am I the only one?