Undocked applets icons when running in dual monitor

I have this annoying problem since I enabled dual monitor via the nVidia driver settings. All the applets are undocked from the bottom panel and are shown in a tiny window in the upper left corner. Sometimes the update applets appear and disappear. And I don’t know if it’s related to this problem but the aMSN icon disappear from the panel when I minimized it. I know it’s still running but the icon is not there.