Plist file over written when Lync 2011 for MAC starts

Question

Hi I’m running into a very frustrating issue where the plist file is overwritten when Lync starts,
Trying this - to get Lync working with
http://technet.microsoft.com/en-us/library/jj945442(v=office.14).aspx
It can be done on Windows....
Ive Quit the Lync app from the task bar menu, Force quit from the apple menu, forced quit from Activity Monitor.
I’m using PlistEdit Pro. I have selected Save and then quit, reopened the plist to confirm changes are saved – yes.
launch lync and files/changes are over written……
Any suggestions?
Cheers
Mike

Answer 1

First, delete the following folders:
Users/Home Folder/Library/Caches/com.microsoft.Lync
Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync History
Then, delete any corrupted or cached certificates. To do this, follow these steps:
Open the Keychain Access certificate management utility. To do this, in Finder, click
Applications, click Utilities, and then click
Keychain Access. Or, search for Keychain Access by using Spotlight.
In the left pane, click login, and then click Certificates.
In the right pane, find a certificate that's named Unknown or
Communications Server, select it, and then delete it.
Note You may have to unlock your keychain by using your password.
Close Keychain Access.
Restart  Lync for Mac.
Important  Before you perform the next step, try reproduce the issue by using a new test user account. If the issue doesn't repeat in the new account, then follow these steps:
Open Keychain Access Preferences, and then click Reset My Default Keychain.
Open Finder, locate the following folders, and then delete them:
/Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync Data
/Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync History
For more Please refer
http://support2.microsoft.com/kb/2629861
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer" Regards Edwin Anthony Joseph