Your best test would be to purchase another BT dongle like Anycom (who I have some issues with) & use their BT stack (Widcomm). If that works, then you have been cursed by the typical Logitech shoddy BT HW & stack implementation.
Actually I have a Bilken BT dongle , still in the shrink wrap, never used. But the Logitech one has a "connect" button on it that is used to connect their devices, I am afraid I wouldn't have support beyond loading drivers, which means I couldn't select from my boot selection screen.
Online Logitech forum posts seem to indicate that either it works just <Great > .... or it's pretty much unusuable... nothing much in between. Probably depends on your PC, although it sounds like Logitech doesn't have BT down pat yet, which is surprising considering they have been selling BT products for well over a year now.
