SSL only breaks install scripts?

I've got a SSL enabled domain set up so that I can run certain things like phpmyadmin and email via an https connection. There are no non-ssl directories on this domain.

Now, when I try to install scripts such as Horde or Squirrelmail I get the following error:

Failed to install script : Could not find PHP version for /path/to/directory

Any suggestions?

Status: 
Closed (fixed)