Problem with medium application autostart

Hi! At last I made the transition to trinity + squeeze with the last of my boxes, the infamous office box. I saw my desktop go down in flames (which actually was the falt of som weired xorg problem) and raise from the ashes 2 days later. After all I am very satisfied, I didn't loose my kwallet nor my kmail settings and date - in fact I didn't loose anything important :-) There is only one issue left, that I was not able to correct: the medium application autostart does not work as I exect it. What I got so far: After I log in, plug in a DVD or USB storage device. Usually there should pop up a dialog asdking me what medium was found and what to do next. Now that dialog does not show up. But when I open konqueror and go to media:/ I see the plugged in device (not mounted). I can open it from there. I unplug the USB device, the icon disappears as expected. I start kcontol, go to "Peripherials/Storage Media", there select "Defaults" and "Apply", close kcontrol, plug in the USB storage device and the famouse dialogbox shows up! When I log out and log in again the dialogbox does not show up until I open kcontrol and do these steps. Now I cannot find what kcontrol does at this stage to make things work. I tried strace, but kcontol does not change the contents of any file in .trinity. It opens and reads these files, but nothing is written: .trinity/share/apps/konqueror/servicemenus .trinity/share/apps/konqueror/servicemenus/xine-dvd.desktop .trinity/share/config/kcontrolrc .trinity/share/config/kdeglobals .trinity/share/config/khtmlrc .trinity/share/config/kio_httprc .trinity/share/config/kioslaverc .trinity/share/config/medianotifierrc xine-dvd.desktop plays DVDs, if inserted. At least when I first start kcontrol ;-) I made a diff from the ~/.trinity tree befor and after running kcontrol, but there are no changes. So, is there a way how I can get the medium autoplay to work? Nik