I do run LM13 AMD64 with xfce 4.10 (by the ppa).
I've got the following problem:
I do have two monitors and let them run by means of nvidia twinview. This is fine, if I first start the session and afterwards connect the second monitor.
The look and feel is as usual.
But, if I first connect the second monitor and start the session, the appearance of the desktop seems like the original xfce layout. Even if I want to change the appearance (Mint-X, Mint-Z, etc.) or the icons it shows no reaction to my choice. The MDM is started by the way.
This seems to be a configuration problem. Could anybody give me some insight into the right spots to alter this behavíour?