ELink, Groupwise 6, and RIM Intellisync won't sync calendar items

I recently purchased a RIM and Motient's eLink service. Before that, I was
using RIM and Earthlink's Blackberry service. The reason I moved to
Motient was that I couldn't get the calendar to sync. Now I'm having the
same problem with the eLink service. I am able to send/receive email
properly and can sync address book and task items, but the calendar
syncing does not work.

When you add a new calendar item to the handheld and then try to sync, it
says that the nnew item(s) will be added to Groupwise, but when it goes to
add it, it kicks back a message saying "Unable to complete translation"
and the calendar item never gets added to Groupwise.

The calendar will sync fine when you first install the RIM software
(Intellisync), but once you add a new calendar item to the handheld and
then sync, it won't work. Has anyone seen that "Unable to complete
translation" message? Anyone know of a fix to get the calendar syncing to
work properly?