Has anyone else had trouble syncing, or pairing, a bluetooth device with their 4S? I know some had this problem with the 4. I never had trouble with previous iphones but can not get my Jawbone headset to sync. Phone goes into the searching mode but no device shows. Just keeps searching. My headset IS in the pairing mode. I tried doing the reset on the iphone that some used with the 4. No change. Anyone else having trouble??