on Admin | Portal | Manage Pages /HOME
it shows: /Portal/Template20_80.aspx
i made the change in table : PageDefinition, Row:
PageID MenuName Description IncludeInMenu ParentPageID Order URLToPage DefaultParameters UsePageIDParameter MenuImageURL IsPersonalizable AllowUserPersonalization PersonalizationData IsEnabled HelpUrl LicenseType IsBeta IsProcessViewPage ProcessViewForProcessesContExtData EvaluationOrder DonotIncludeInViewSwitch IsMobilePage ServiceId
6deeb623-9ab1-4f68-8104-0fb4fd609e9b Home NULL 1 NULL 0 /Portal/Template20_80.aspx NULL 1 /Images/action.document.add.gif ......
The Problem is Not the HOME-page, it works correctly after editing the Template manually. i think, the Processmangaer redirect to this Page with the 33%66%100 Template hardcoded in any .aspx site