Social Tab Problems in version 7.1.2_10978

[gtinet]

I have Zimbra Desktop 7.1.2_10978 running on Ubuntu 11.0 and 11.1. I am running into a problem on the Social tab. It seems that any change I make does not get saved. For example, I can remove Tweetmeme: Most Popular ad Digg: Most Popular via the red "x" or via the check boxes in Preferences and the both reappear the next time I log in. Also, I can add a Facebook account but the next time I log in it is gone. I am using ZCS 7.1.1_GA_3196 as my server. Any thoughts or ideas would be greatly appreciated.

Thanks,
Kevin