Fatal

Annoying

Under Gtk 1.1.2, and possibly 1.1.1 and 1.1.0, Tab is trapped and
signal propogation stopped by the combobox itself before it gets
to our handler. Thus using Tab to complete the command from the
system PATH directories doesn't work. On Gtk 1.1.3 and above this
is fixed, they use Mod1+Tab, and the functionality is restored.
The Escape key has also been assigned to the PATH complete, so
use that if Tab doesn't work.

If a command has a space in the actual command, which bash would escape,
gRun splits it at the space and tries to launch the fragment. Must try
catch escaped chars.
