If a make a posted appointment in GroupWise Client, the appointment shows up correct on my iphone with ios 6.0.1. But i can't modify this appointment on my iphone. The only thing i can do is to accept or decline the appointment. Same, when i create the appointment in Webaccess.
If i test the same with an ipod on ios 6.0 (instead of 6.0.1), then i can modify the appointment without problems. Whats going wrong? Is there something i'm missing?

GroupWise 8.0.2 on OES2 SP3 Cluster
Novell Data Synchronizer 1.2.4 Build 996