[CKEditor 4.3.3 on iPad] Edit area disappears behind popup keyboard

Hi

I've installed 4.3.3 on a website and am accessing from an iPad.  When I type into the CKeditor the editor pane doesn't auto-scroll upwards when my text reaches the part of the screen obscured by the popup keyboard so the text starts to disappear behind the popup keyboard.  I can continue to type - I just can't see what I'm typing.  The text saves fine.

Anyone else seen this ?  Any suggestions ?

Thanks