sudo vs. gksu (was: Re: Nervous Mouse Syndrome)

[Markus Schönhaber]

Mario Vukelic wrote:

> No, gksu _is the right tool to use. sudo should never be used to start
> graphical applications, as this could cause problems:
> 
> https://help.ubuntu.com/community/RootSudo (in the "Notes" section)

Since the above page only says "don't do it!" but doesn't explain what
might happen otherwise: what problems are to be expected if one starts a
graphical application with sudo?

Regards
  mks