Cannot open shared calendard from one pc

[humpty]

I'm running Outlook 2007 and connector 11.4.4.

One of our computers cannot open shared calendars. They don't appear in the calendar list and clicking on the calendar in the folder list gives the following error:
The information store could not be opened.
This is the same for other premium users' calendars and resource calendars.

... but only on one computer. Works fine in SWA.

I did upgrade this user from standard to premium though, is that maybe a problem?

[markusrp]

Do you already check the DNS settings on that client? Server specifed in the connector must be the name displayed in the SAC (Server Info).

We had trouble since kerberos which require the scalix server in the local windows domain which ends .LOCAL -