Like you I have the same situation, but I am new to WP/BP and have a few questions about the “fix”. The functions.php file exists in every theme. Thus, if you switch themes, you’d have to edit the new theme’s functions.php (is that correct?). Is there someplace special within the functions.php file where the fix should be copied such as within “is_admin”? Sorry for what should probably be an obvious resolution, but I’ve spent a long time trying to figure out group management without much luck. My installation is WP 3.2.1 with BP 1.5.1, BP Group Management 0.5.2 and I am not using MU.