[There's a reason that Yoda is the unofficial mascot of SBS.  Size indeed matters not.] Start Outlook with a switch > Start > Run > Outlook /resetnavpane - THE OFFICIAL BLOG OF THE SBS DIVA
Fri, Feb 26 2010 19:47 bradley

Start Outlook with a switch > Start > Run > Outlook /resetnavpane

This hit me today.. couldn't get the outlook mail enabled public folder contacts to show up in the contact section if my life depended on it....

Found this post:

Know this is a bit old post.  But as i just had the same problem, and no one here got a solution to why the favorites did not show up under the contacts.

After digging a bit around, i found this page http://www.outlook-tips.net/howto/commandlines.htm

/resetnavpane

Clears and regenerates the Navigation Pane for the current profile. Removes all Shortcuts and Favorite Folders. Has the same effect as deleting profilename.xml in your user directory.

Start Outlook with a switch > Start > Run > Outlook /resetnavpane

It removed the previous ‘favorites’ and when added again, it now shows the other contacts. 

http://social.technet.microsoft.com/Forums/en/office2007deploymentcompatibility/thread/2301cbea-7585-461a-adb7-d0cd8b16fc62

 Reset the navigational pane and voila.  There's my public folder contacts in their proper spot as favorites.

From the sometimes you just want to kill Outlook moments

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# re: Start Outlook with a switch > Start > Run > Outlook /resetnavpane

Saturday, February 27, 2010 4:56 AM by Daniel Mundy

I had to do this for a client the other day whose Outlook would not even open. It said "Cannot start Microsoft Outlook. Cannot open the Outlook window."

Running outlook.exe /resetnavpane fixed the problem, but they lost their NK2 file (Outlook's "remembered email addresses" feature that people use instead of contacts, when they don't know any better...)

Just a heads up - back up their NK2 file first, just in case you get hit by this.