There are times when you will need to make "repairs" to your site. Many problems can be resolved by recalulating hyperlinks. In addition, any time you publish; you should recalculate your hyperlinks. This will correct any problems with links, navigation and Frontpage components.
Recalculating hyperlinks on the server:
Go to File/open web
Type in http://domainname.com
Type in userid and password in the dialog box
Give Frontpage a minute to do it's thing.
Go to folders view. You should see a listing of your website files with http://domainname.com
Now go to Tools/recalculate hyperlinks.
Let frontpage do it's thing.