My N900 will connect to my Nokia Bluetooth cark kit CK-300, allow me to make calls, etc. The problem comes when I disconnect the phone from the car kit. After this the N900 ear piece is inoperable so I cannot hear anyone on the other end when I make or receive a call. The phone is very slow after disconnection from the car kit as well. Also I get the "Unable to play media. Audio in use by another application." message when I try to play music after disconnection from the car kit. I can solve the problem by restarting the phone, but this solution isnt acceptable. If anyone has comments on this please let me know. This, together with the inability to use most of the PC suite functionality has driven me to get a N97 mini. However its no way as good as the N900, but it is excellent at doing the things that are important. If no solution comes along to allow me to use the N900 in the next 7 days I will sell it. Maybe in a few months the problems will get sorted out and a N900 will be useful to me again. I hope there is a fix as I want to keep my N900 really.