Comment 2 for bug 1200364

I have a very similar problem for a few months now.

The way it is being fixed is exactly the same as Brendon Rapp reported in Bug Description.

There are a few differences:

- I have a laptop with one additional lcd monitor connected

- the applet on laptop's display is always fine - it is the panel of the additional display that's affected. But instead of not showing any buttons it displays a copy of those on the laptop's display applet

- it happens once in a few times

Since both screens show the same log in screen after boot, I guess it may be caused by the system not having switched to multi-monitor setup fast enough after logging in, so the applet checked for it before the system switched the mode of the additional monitor from a copy to a separate screen. I assume the applet defaulted to laptop's built-in display (I'm guessing) as a fallback from (at that time detected as) erroneous configuration