Upgraded from what?
Are you sure this is a Windows SharePoint Services Site?
When does the error occur? When opening the site? When opening a certain
page? When opening any page?
Can you open Web pages in other sites OK?
Have you tried deleting all FrontPage temp files and .web files?
Jim Buyens
Microsoft FrontPage MVP
http://www.interlacken.com
Author of:
*----------------------------------------------------
|\---------------------------------------------------
|| Microsoft Windows SharePoint Services Inside Out
|| Microsoft Office FrontPage 2003 Inside Out
||---------------------------------------------------
|| Web Database Development Step by Step .NET Edition
|| Microsoft FrontPage Version 2002 Inside Out
|| Faster Smarter Beginning Programming
|| (All from Microsoft Press)
|/---------------------------------------------------
*----------------------------------------------------