wii mote connecting to bluetooth

recently i have been trying to get my wii mote to work on my computer (windows 7 32 bit). i have gone through all the steps necessary in order to get my wii mote to work for games e.g cod 5 pc. my real problem here is that the Bluetooth dongle v2.0 randomly disconnects my wii mote from itself. so for example: i have connected the wii mote successfully to Bluetooth and now i am about to run glove pie but all of a sudden the wii mote has disconnected and not working any longer. Bluetooth try's to reestablish the wii mote automaticly but fails and says "driver did not install properly".
if anyone could please help me that will be much appreciated thanks