BuddyPress.org

Hi,
When I go into fullscreen mode when editing a post, using a child of the BP default theme, on site number 1, the page area below the header appears twice, creating a ghosting effect. The text entered previously is displayed but when one starts typing it is in the ‘other’ version of the form, which is empty. So the existing text can’t be edited.
When the form ‘fades out’ to go into non-distracting edit mode, the other version of the form stays visible.

I can’t reproduce this on my desktop version of the site, which has all the same plugins enabled.
It only seems to be happening in the main site blog, site number 1. I have a ‘tags’ blog which also uses the same child BP default theme. It doesn’t show this behaviour.

Any ideas what might be going on?

WP 3.2.1 / BP 1.2.9

Thanks.