[Dx4win] Bluetooth USB dongle stops detecting BT Mouse

[Radivoj Kar, F6GNZ]

Hi,This is not directly related to DX4WIN, but somebody might be able to help:
Bluetooth USB Dongle on my Win7 laptop has detected my new BT Mouse. To check if it would detect it next time, I deleted Mouse Icon from detection window. Since then, Mouse is no more detectable! Tried with another brand of BT USB Dongle: idem ! But Mouse is still detectable on another Bluetooth equipped laptop. I've done something wrong by deleting that Icon, but how to repair this?
73, Radi F6GNZ