Hp ipaq 214 sync problems

Hi I am new in this forum.
My name is Dimitri.
I encounter problems with synchronizing my ipaq214 device with the outlook 2007.
I synced them once but since the last time I always get a synchronization error.
I have already tried to delete the connection and create a new one not once but many and it does not work ( or maybe if I can recall well it worked once).
I run win vista 32 and the windows mobile center.
I would really appreciate any suggestion.

[getsurfers]

Check the firewall guide at the activesync/mobile center pages on the microsoft site faq.