im am running to a simmilar issue that the user "bmav25" was running into execpt when i turn off all bluetooth devices, plug in the dongle, and turn them back on it still says there is a driver error. the images in his thread are the same as mine. If anyone can help it would be great, thanks.

PS: the model in the description says its "UB500" buts it is only because there was no option for "UB400"