I have noticed this happen with other applications, too, ie the unity launcher somehow loses track of the application so it no longer appears in the launcher, but I don't know what causes it.
When it happens, does ~/.xsession-errors contain any useful information?
I have noticed this happen with other applications, too, ie the unity launcher somehow loses track of the application so it no longer appears in the launcher, but I don't know what causes it.
When it happens, does ~/.xsession-errors contain any useful information?