I`ve had this problem linking to my Nokia 6310i from a bluetooth adapter on a lap top. The crucial solution involves having the latest version of Nokia PC Suite v 4.88 released about three weeks ago. It can be downloaded from Nokia site. Remove your original PC Suite first & install the latest version.
In addition the connection must be made over the same COM ports via Nokia Connection Manager after "pairing" devices.
If I`m ringing any bells post another message and I`ll give you more details. This took two & Half hours with a Nokia Care Centre to resolve - I might save you some time!