I work for a large company with 500+ users. One user was recently upgraded from Office 2003 to Office 2010, with a virtual (VMWare) client. He has legacy recurring appointments on his calendar. He cannot move some of those appointments. One in particular, his lunch, is set for noon. If he moves it to 12:30 it sticks but if he tries to move it back it won't move. He schedules his day down to 15 min. blocks so this is important to him. Even if he creates a new recurring appointment, he can only move it once, then it appears to lock.
He's also having issues with legacy recurring meetings scheduled by his superior. If he tries to change these he gets an error that 2 meetings cannot be scheduled at the same time.
I have replaced his .ost and re-installed office, without luck. We are using Exchange Server 2007. Any ideas?