Nexus 4 freezes with blue tooth headset connected

Have had the Nexus for 5 days now. I have had a Jawbone ERA blue tooth headset connected since day one. Last night I had to pair the two devices again, tried a few things before but headset would not stay connected. This morning it worked fine for multiple calls and then after one call the phone became unresponsive and could not get anything to come up on the screen. Holding the on/off button did nothing. For some reason I tried turning off the blue tooth headset and the screen on the phone came back up immediately with an error message "google phone unresponsive" (may not be exact language). After this the phone was very sluggish so I did a restart and it worked perfect again until I turned the blue tooth headset back on and made 2 or 3 more calls and again I had to go through the above scenario. This happened 4 more time this afternoon. I am on the 5th call trying to make it repeat the error so I can give the exact error message but no luck so far.

Does anybody have any ideas on how to correct this problem??

I've got no answer for you but I do have the same issue. Please post if you find a solution.

Either of you have a screen protector covering the proximity sensor (two small circles barely visible at top-left corner of screen)?

If so, don't do that!

Have no case or screen protectors, took the plastic off the front and back of phone and started using it. Have not been able to find case I like.