Help with Outlook 2007 - shared folders??

[teejayem]

I have recently upgraded my Outlook from version 2003 to 2007. When I
view my folder list the majority of my folders have the shared hand
icon that you would normally get when sharing a folder on your
network. I have checked the permissions on various folders and they
have Default and permission level set to None. Some also have All
Users Group but this user is also set to None. I have removed the All
User Group from the some of the folders but the hand icon is still
showing.

Any ideas?