To describe this problem in brief:
I am running Atahualpa 3.4.4. The other day I noticed that the Apture WordPress plugin resizes the center column after you click it. This is strange because it happens in only Safari and Chrome (i.e. "webkit").
My first choice is to remove this - but it's an amazing media plugin and I don't want to.
Second choice is find a different theme - or build my own (future work).
The developers of Apture say that Atahualpa has some "old school" table design - and this is what is breaking the plugin and forcing the column to resize.
See links to my site and the thread with support of Apture here:
Would really like some help on this!