WDMC sync error with appointments

[dutty.persian]

"the following appointments failed to synchronize"

it used to be called error code 1 with active sync and now it says the above error code on WMDC since i got vista.

Either way, it never got fixed. My appointments sync fine. Whenever I reinstall outlook on that computer, those select appointments duplicated and sometimes triplicated.

what is going on with my outlook? can anyone help?

using WM6.1 cooked rom 20931, 2 computers, 1 PC & 1 laptop, both vista ultimate, both outlook 2007.

thanks!