Working! I've used this same laptop with various versions of BT with no luck. Now? Not the case with BT3. It seems to work better than my Dlink 520+ Pci card on my desktop. The Bluetooth apps seem to work. However,I think I may be the weakest link in the suite of Bluetooth tools. Volume = fine. Installed BT3f on a flash drive. Boots into KDE fine on the D600 but I get a black screen when I choose to boot the Compiz option.