We've been trying to implement the algebra filter on our moodle site (hosted on a shared server by an external hosting company). Surprise - it doesn't work.

If you go to http://<domain>/filter/algebra/algebradebug.php and run the first stage translation this is what you get:

There is a problem with either Perl or the script algebra2tex.pl

The shell command
cd /var/www/vhosts/<domain name>/httpdocs/filter/algebra; ./algebra2tex.pl x/2
returned status =
The file permissions of algebra2tex.pl are: 100755

Does anyone here have a clue what this means?