Does anyone have this phone behaving itself over bluetooth in a 57 plate Sport?

Currently mine refuses to:
- load names on the call register (just displays numbers)
- loads the same number multiple time on the call register (like the phone it should just show a multiple dialled number once)
- doesn't load the address book correctly

All in fairly crap especially compared to the perfect sync with a SE C905. I suspect it is because the Vivaz Pro is a Symbian O/S phone - can anyone prove me right/wrong?

Phone still in the 14 day period so will be going back on Monday if I can't get it to work properly

thanks muchly