Hello ! I have a Z600, an iMac FP 800 and a D-Link DWB-120M usb bluetooth dongle. I have been using them without any problems until my update to 10.3.4. Since then, I cannot browse my phone, neither send to it files from the desktop. Since iSynch and AddressBook are working correctly, I suspect a problem with the "bluetooth File exchange" (BFE) software. The browsing of the phone fails during the connection. BFE offers then to reconnect or to cancel the operation. Trying to reconnect crashes BFE. Trying to send files via BFE (apple-shift-b) just connect the iMac to the phone without transmetting the file. (the Z600 see the bluetooth connection, connects and wait) I tried all that also into a new user without any more luck. Repear permissions and trashing preferences didn't help neither. Anyone faced the same problem or has a solution to mine? Thanks, Steve