What version of Outlook are you using?
Have you looked at either of these articles?
OL98: Troubleshooting Net Folders
http://support.microsoft.com/default.aspx?kbid=196297
OL2000: Troubleshooting Net Folders
http://support.microsoft.com/default.aspx?scid=kb;en-us;229962
If you are using Exchange then you can only share folders in PST's,
this will cause the Net Folder to be gray on folders that are not
sharable...
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Nikki Peterson [MVP - Outlook]
Have you installed TEAM FOLDERS? It seems to me that
there was an issue with this...
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Nikki Peterson [MVP - Outlook]
Yes, I have tried that for twice.
What souhld I do next!
Jimmy