Group Preferences Not Sticking

I have the polls plugin installed and several others. I started a group called movies and when I tried to disable the albums, pages, files, etc. The preferences won't stick. They still show up in the group. I only want to enable group discussion and event calendar. Also, the polls plugin appears in the left menu but not in the group edit page, so there seems no way to turn it on or off.

Is there a bug with these group edits sticking in a virgin elgg 1.5 or does this sound like a plugin issue?