An error caused a change in the current set of domain controllers - Exchange 2010

For the last couple of days, a strange error message comes up whenever I started the Exchange Mgmt Console on my EX2010 server. Even after configuring a "fixed" configuration domain controller (from the EMC/select Server Organization/ on the right hand side "Modify Configuration Domain Controller" option is shown), the error still appeared. No matter what part of the GUI I was going through.

The strange thing was, when I logged on with another administrative account on the same server, I did not get this error. So it must be user related than or what?

As such, I did a new test, by renaming my user profile, re-logging on with the administrator account, and voila, the error message was gone.

After some digging in the profile, I found out the following file, which seemed to be the cause of the problem:

c:\users\<specific user>\appdata\roaming\microsoft\mmc\Exchange Management Console

Rename or delete this file, restart the EX2010 EMC and all errors will be gone.

Cheers,

Peter