If you are using Forum module you will most likely have issues with displaying thread columns within latest releases of DotNetNuke.
Even official DotNetNuke forum page has same problem.
Well, you can somehow troubleshoot and solve the issue.
To troubleshoot the problem you need to navigate to
DesktopModules\Forum\Themes\Default directory and edit
Default.css file with a text/css editor.
Before editing Default.css file make sure that you have a backup of this file (e.g
Default.css.bak)
Continue reading Forum Display Issue Fix...