i now have a very weird feeling.

i can't find SOME of the contacts in my address book on my mac, while they do exist on blackberry.

the weirdest of all is that numbers of entries are identical on mac and on blackberry.

but i found at least two contacts on the device which do not exist and i can't find them even via search.

has anyone experienced this? any suggestions maybe, where to dig?

The best guess I have is there is not a completely compatible field map (this is true of entourage, outlook, google, you name it...)...so when the map is OK, things sync...when it is off, not so good. Perhaps you could compare what differences there are in the ones that did not transfer.