You cannot view the AreaNavigationSettings.aspx page in Office SharePoint Server 2007 after you create a relative URL

Consider the following scenario. You create a relative URL in the AreaNavigationSettings.aspx page in a Microsoft Office SharePoint Server 2007 site. Then, you try to view the AreaNavigationSettings.aspx page. In this scenario, you receive an error message.

Note To view the AreaNavigationSettings.aspx page, click Site Actions, click Site Settings, and then click Modify Navigation.

To resolve this problem, apply the following update:

• 975731  (http://support.microsoft.com/kb/975731/ ) Description of the SharePoint Server 2007 Cumulative Update Server Hotfix Package (Coreserver-x-none.msp): October 27, 2009

Limitation

If you have an invalid URL before you install this update, the update cannot fix this problem for you. In this scenario, you have to delete the invalid URL manually.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.