I have been syncing my n900 on my vista PC for about 2 weeks now. I am treading gently, and only syncing contacts.

On my first sync all contacts were sent successfully from the PC- but I noticed "work fax" numbers did not land on the n900. It showed an error msg about not supporting this field. It is a bummer, I will have to call people for their fax numbers every time I am away from my PC.

It does sync both ways. But something strange happened on my last sync - for some unknown reason it pushed (changed) about 35 addresses to my PC. Now these addresses in outlook have a funny format (zip code appears before city name). This is the format addresses show in the n900 - although the standard format in the US is - City, State ZIP. For some reason it decided to pick 35 contacts out of random and change the format on the PC side - i did not make any changes to the addresses on the n900, they were in the same condition as they arrived from the PC on my first sync. (I did setup the n900 for the US region on first power up) I find this very annoying , it has to be a bug but I do not understand why only 35 out of over 700 contacts were affected.

I am afraid to go to the PC and correct these formats - in case the phone tries to correct me again!!

PC suite is indeed a frustrating delivery for a very important app. Nokia needs to learn from Apple in this area. Actually I find the iphone to be on a whole different level when it comes to interfacing with the user, I picked the n900 for its leapfrog in core architecture and its open nature. I have a feeling I will end up learning a lot more about the innards of this phone than I want to, over the next few months.

Oh well...