I've been attempting to connect my 6310i via Bluetooth to my laptop and have finally found a solution.
I started off by using a TECOM USB Bluetooth Dongle but i encountered errors when attempting to connect to Nokia Data Suite.
From browsing the Forum I can see that are many of us very frustrated at the fact that the Nokia Data Suite Bluetooth Connectivity only works with the DLR4 card in most cases.
I have just purchased a TDK PCMCIA Card and ive finally managed to succeed in connecting my 6310i to my laptop using the TDK Mobile application v3.3
Hope this helps anyone who has been as frustrated as me...