memory limit increase

.com issue.... grrrr blank page issue with IPB 

blank page on member profile edit, specificially Admin Cpanel: Management > Manage Members
and also
Admin CPanel: Tools & Settings > Maintenance > Recount & Rebuild (failure to complete task)

both are memory issues...
until I get off my bum to do something about php.ini
index.php

directly below
<?php
add...
ini_set("memory_limit","16M");

looks like...
<?php
ini_set("memory_limit","16M");

and / or

Gallery2 (failure to complete task)
open .htaccess
add...
php_value memory_limit 32M