Nokia PC Suite sync failed Error code 0x80044403

Hi!
I am trying to synchronise a Nokia X3 mobile with a PC running Vista via Bluetooth but failed. However, I have successfully paired them via Bluetooth.The two sync just fine via USB cable. Nevertheless, when I try to sync over Bluetooth, I am just getting a message appearing on the PC saying: “The connection between the PC and the phone failed error code 0x80044403’’.
The PC is running Vista Service Pack 2.The Bluetooth hardware is a HP integrated module with Bluetooth 2.0 Wireless, manufactured by Broadcom.I am helpless & stuck now. I can’t work with it please somebody help me?
