Hi, I got the above error for ANY reasonable table structure (even with the sample provided in this website).

The drop-down menu simple does not give any options. 

Thank you.

Environment:

Debian squeeze

Joomla 1.5.23

PHP 5.3.2-1ubuntu4.9 with Suhosin-Patch (cli)

MYSQL 5.1.41-3ubuntu12.10 

JooDatabase 1.6