I first updated a portal from 4.5.4 to 4.5.5 and got this error when I goto admin - sitesettings - Apperance - next to logo and banner i get this: You don't have permission to see the files on the site. I have checked that (running windows server 2003, .net 2.x) network service has full permissions. I have tried to log in both as host and admin .. same problem.

I did a clean installation (4.5.5)  and got the same problem ...

All other DNN-sites on this server works fine.

Any good ideas?

I ended up deleting the portal i was going to update and made another "clean install" incl. new database and it worked right away.

I have also last night created 3 new portals incl 3 new databases and updated one portal from 4.5.3 to 4.5.5 and it is working OK.

Soooo I dont know what to say ... looks like a local problem here and not a 4.5.5 problem !!

Peter

it's actually not a real "bug", the message is warning you that your user does not have permissions to a file. It's not the asp.net permissions it means, it's the dotnetnuke permissions (dnn supports 3 file permission levels, see http://www.dotnetnuke.com/Community/Blogs/tabid/825/EntryID/404/Default.aspx for more details).  However, normally host/admin users automatically have all the necessary permissions, so somethings gone wrong - i've seen some 3rd party modules cause issues before, as well as some old core issues with orphan records in the files/folders tables [note:this is why a new install is working fine]. I would recommend that you go to the admin->file manager menu item and assign the rights for your user (i.e. admin/superuser groups), that should resolve it - you should also apply the permissions recursively.

Cathal