Is the maximise state happening but the border is only giving a
partial window and the other buffer is there but the frame cuts off
visibility?


> 
 > (2) In the bad base state type F11.  Does anything change?  Type F11
 >      again.  Does anything change this time?

Exactly the same behaviour as in case (1)

I exited the bad state emacs but with only one window shown in the
frame and then restarted emacs and the frame was displayed correctly!
I then displayed another buffer in a second window in that frame and
exited again. On a restart the problem was back.
The problem only seems to occur when the frame is trying to show 2
buffers?


Robert
-- 
Robert Marshall