'signup_extra_fields' is not being called (reCapthca plugin problem)

I’ve been trying to get wp-reCaptcah to play nice with a buddypress/wordpress network setup but I’ve been having problems getting it to show up on the registration page (i.e. xxx.com/register).

Looking intot he problem I’ve found it may be a case of ‘signup_extra_fields’ not being called.

I tried creating my own action to hook into ‘signup_extra_fields’ and found it wasn’t executing, odds are this is the reason it doesn’t work with recaptcha either.

This is what I’m doing:

add_action(‘signup_extra_fields’, array(&$this, ‘FunStuff’));

where FunStuff is a function which does:

echo ‘FUNSTUFF’;

I don’t see that text in the registration page. most if not all the other action hooks seems to work fine… any ideas why this one specific action hook won’t?