[Gimp-user] Can't save bug?

[gmatht <forums gimpusers com>]

> All of a sudden after pasting from another .xcf file (which I had just
> 10+ times with no similar result) I moved the pasted part, the image
> was pretty much finished and I went up to click file>export and
> everything between "open recent" and "quit" in the file menu was grey.
> No chance to save or export and it appears half an hour of work lost.

Are you using Ubuntu Unity? If so this sounds a lot like a known bug:
https://bugs.launchpad.net/ubuntu/+source/unity-gtk-module/+bug/1263205

Try using something other than Unity (e.g. KDE, LXDE) or run 
   sudo apt-get remove indicator-appmenu
to disable this "feature".

-- 
gmatht (via www.gimpusers.com/forums)