I'm having an problem with a shared calendar syncing. From time to time the following error pops up: "Could not read the calendar" It only happens to the office's group calendar which is setup as a shared resource. The users personal calendar continues to function just fine. If I unmount the group calendar and remount it everything beings to work again. Sometimes if you wait long enough the calendar will just start working again. The end user is on Windows 7 using Office 2010. The server is running Zimbra 8.0.3_GA_5664. They are using the corresponding ZCO. I have attached a log I pulled during one of the calendar outages. I don't know what to look for so if someone could point out potential problems I would appreciate it.