Our Sharepoint Portal Server 2003 home page has three data view web parts that display different lists. Starting Saturday, all three web parts starting returning this error:
Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Windows SharePoint Services-compatible HTML editor such as FrontPage. If the problem persists, contact your Web server administrator.
To our knowledge very little has changed on the site recently (no patches installed, edits, etc) - the problem happens to everyone (regardless of account/permissions). The strange thing is that we installed an old version of frontpage and opened the sharepoint site - all the web parts display properly inside frontpage (with live/valid data) when editing the home page.
I've confirmed that the web part's list guid matches that of the actual list and have removed any unneeded fields from the datasource - but the problem still persists. Any help or advice is appreciated. Thanks