CMS Made Simple Forums

I've started setting up a new site using CMS. I originally installed CMS v. 1.1 and tried to upgrade to 1.1.2 after I ran into the problem.
What happens is that the output stops when reaching the front-end login tag in the template. All before the tag seems to be parsed and shown OK. The template I'm using durring site installation is a copy of the default template ("Left simple navigation + 1 column"):

{* Start Content Area *}

   {print showbutton=true script=true}
      {title}
      {cms_module module=FrontEndUsers}
      {content}


I'm using the lastest front-end module (1.2.0) and have tried to remove the module again and re-install.
I'm running on a Linux server.

Check your httpd error log
or turn display_errors on
and set error_level to E_ALL