[@richardjeanderson Member 18 years, 3 months ago]

OK, I’ve solved the problem!

The version of PHP on my server is 4.4.4, which should be compatible with bbpress. I recalled that in my moodle installation, we hit issues that could be resolved by adding a .htaccess file with the following line:

AddType x-mapp-php5 .php

i.e. asking for php to be interpreted as php 5? (I’m not a php person – is that correct?).

Creating a .htaccess file with this line in it and dropping it into my bbpress folder solves the tag.php problem . . . .