Fatal Error on Activity Page

I did some auto updates about two days ago to several plugins and themes from this site and the activity page has stopped working. Until now I hadn't had time to devote to checking it out. I first changed from the Blogs MU theme to the FUN theme to see if it was specific to the MU theme and have the same error.

I turned off the Activity Plus plugin as I see some others having issue with that one. Still got it. I will be doing the usual deactivating of plug ins and such to try and troubleshoot but if someone can help out with a quick fix that would be great.

I will probably stick with the FUN theme and the error is listed here -
Fatal error: Call to undefined function bp_core_avatar_thumb_width() in /home/crosseye/public_html/wp-content/themes/bp-fun/activity/post-form.php on line 18

my site is crosseyedgaming.com

I am using WP 3.2.1 and all current version of buddypress and other plugins. I use mostly WPDEV plugins and themes which show us being updated.

Thanks for your help.

UPDATE - I just updated to BP 1.5 and this seems to now be fixed. I hope.