Hello every one!!

I've got an e-65 nokia mobyle and i have downloaded the "nokia configuration tool" tool, so that i can update and define SIP profiles faster thouhg my PC.
The problem i have, is that once i have started the tool (i have previously connected the phone via USB), when i try to use the "edit online" option, it seems to be done at the begining, but it 's not completed and it shows an error message: "e65 disconeccted" . But i haven't disconnected the device.
Summing up, i'm searching a solution to reach the "edit online option".
I have probeed to reboot, reinstall, syncronize...everything, and i don't know where the error can be.

I wouyld be very a glad if somebody knew how to solve this problem!!
thanks a lot!!!