i was able to sync my phone with my mac just twice. i experienced some problem with my phonebook and address which prompted me to try deleting my device from the isync device list and find device again. my problem now is that isync can't seem to find my phone. i went to bluetooth setup assistant to delete my phone and add again. i noticed something. the checkbox for me to activate isync for my phone is not enabled. i tried so many times doing different possiblities like turning off the phone, resetting my phone, etc. it doesn't work. has anyone experienced the same? what's the possible solution?
have you tried pairing again? You can also try initiating the pairing from the phone instead of OS X. Also, the new 10.4.6 might be of help. It claims to resolve a lot of BT issues. Let us know how it goes.