recently i have been getting this strange error on my phone which disconnects my phonecalls and bugs me all the time.... no application i installed extra (eg. Fexplorer, SmartMovie, etc.) are working... i get this starnge error when i try to start the bluetooth: "unable to perform bluetooth operation!" sometimes i get this message when the phone is idle and is just placed somewhere: "Apllication Closed! Btui!" or something like that..... i tried restoring the factory settings..... then formatted the card using the mobile, and the used that "green button"+(*)+(3) format combination... but the error is still there...... PLEASE HELP!!! Even when i took the phone to nokia care, they just reformatted it and updated the firmware...... nothing else..... PLEASE HELP!!!