vollerworld wroteEasier said than done when using shared hosting!
You can also make these changes before you install DNN!
Fix for error in DotNetNuke_04.05.00_Install\Install\Module\Forum_03.20.09_Install.resources:
It's a ZIP file, just add the .zip exension to the filename (Forum_03.20.09_Install.resources.zip)!
Then, extract (copy/paste) file '03.20.07.SqlDataProvider' and open it (text editor)!
Find: @Filter + ' GROUP BY P.ThreadID , P.CreatedDate ORDER BY P.CreatedDate DESC '
Alter: @Filter + ' GROUP BY P.ThreadID , P.CreatedDate ORDER BY P.ThreadID '
Save the file and put it back (copy/paste) into 'Forum_03.20.09_Install.resources.zip'
Remove the .zip extension from 'Forum_03.20.09_Install.resources.zip' and you're done!