Hey man, I am having the same problems with my Acer Aspire 5750G
It sucks so bad.
If I launch BT5 in a Virtual machine then the drivers work...somehow?
But I hate using VM
So....I desperatley need help in fixing the drivers/adding them.
Or if you could add the STA/Broadcom drivers in BT5 R2 that would be freaking SWEET
Thanks in advance