Comment 2 for bug 556339

This happens to me each time I boot. It doesn't seem to actually harm the functionality of the HPLIP toolbox, but it does get rid of the icon in the systray. I normally have mine set to not show there anyway, so it doesn't really bother me, but I know some people like the ease of use that comes with having it there. It seems that if the systray icon is set to "always show" in HPLIP's preferences it stays in the systray. I'll reboot with it like that and see if this bug happens again.