I am running DNN version 05.02.03 on server 2000 with SQL. All of the pages in all of the portals are showing up fine. When I get the error is when I try to login or click any host links in the skin such as user or setting in control panel, or update on FCKeditor. ====================================== Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested Url: /Home/tabid/234/Default.aspx( this will always change and be specific to the page you are on... Example if I am on AboutUs instead of home it will read /AboutUs/tabid/264/Default.aspx) ====================================== It happened all of a sudden. All of the portals are using different skins and containers. I have restarted IIS, rebooted the server, moved webconfig out of the folder and back in so it would clear the cache. Any suggestions?? Thanks