[Onkel_Tom]

This hack works fine with vB3.0.1 !
The "userfield_select_option" is placed in the pre-cached templates.
Just look for the following lines at the beginning of the member.php, line 32

PHP Code:

// pre-cache templates used by all actions
$globaltemplates = array(
    'MEMBERINFO',
    'memberinfo_customfields',
    'memberinfo_membergroupbit',
    'im_aim',
    'im_icq',
    'im_msn',
    'im_yahoo',
    'postbit_reputation',
    'userfield_checkbox_option',
    'userfield_select_option',
    'memberinfo_usersthreads'
);