[ngw] Calendar items missing

[Adam]

On March 30th a user notified our help desk that after her PC was moved from a default workgroup to an Active Directory her GroupWise calendar is missing everything after January 1st.

I am about to restore March 29th backup in lab area, export her calendar to have it imported into her production account.

Question1- Can calendar export be done selectively for months that went blank?

Question2- Beside user error, is there any other reason for such disapperence?

We are running GW 8.0.1 on NetWare 6.5.

Thanks,
Adam