Page template inconsistencies

I'm using the free version of Catch Box, and I'm having some difficulties with recognition of non-default page templates. My default is to have the content on the left with sidebar, but I'm trying to use the Full Width Disable Sidebar Template option on some pages. It seems to work fine on some pages, for example: http://sndhome.org/calendar/ But it doesn't work on other pages, for example: http://sndhome.org/groups/ and http://sndhome.org/forums/ I'm using BuddyPress for my Groups and bbPress for my forums, and it appears that this might be part of the problem. I'm not sure how to trace back through all of the various .php files that Catch Box and these plugins use to figure out where things are going wrong. Any guidance would be appreciated. Thanks, Shirley