help needed connecting to 3510i

[groen]

Please help me,
I am trying to connect to my N3510i
I am using MobiMB 1.2
When I start the program the phone respondes by closing the screen saver and going to the main screen. But I ca do nothing.
When closing MobiMB the phone responds with "accessory not supported".

Does anybody know what the problem is and what I need to do?

Thanks,
Groen