I have a Sony Ericsson P900 device that I sync with GMS.

I was first syncing the device with a specific user name. Everythings were
nice. Then I change the GW user on the P900. The device sync (I mean the
communication occurs), but the entry of the new user that are on Groupwise
caldendar are not sync with the P900. Only new calendar entries of the P900
are sync with Groupwise.

I have tried to delete the user and the device in GMS and recreated it, but
nothing to do. I also tried to reinstall the intellisync client on the
device. I belive that if I do an hard reset on the device it will works
again, but I'd like to solve this issue without reseting the device.

What can I do??

Thanks in advance.