Comment 4 for bug 337427

This may not be very useful information, but ...

I apt-get upgrade ; apt-get dist-upgrade Jaunty every couple of days.

Since yesterday I am not having the reported problem any more. Now when I log in the resolution is set correctly (in my case 1024 × 768 on the laptop panel, 1680 × 1050 on the external monitor relative-positioned above the panel).

I will report back again if the problem reoccurs, hopefully with more information about the circumstances under which it occurs.