[Fedora-livecd-list] liveinst.desktop doesn't start anaconda

Hi. I have a problem with my own created live cds: When clicking on the icon "Install to harddrive" anaconda does not start. It's the same when I try to start "liveinst" with ALT+F2. Only in a terminal "liveinst" is starting anaconda and working fine. It seems that this only occurs on my own cds, rawhide-kde-20070517 is working. And it happens with kde and gnome (an own gnome cd, not livecd-fedora-destkop). I don't know how to debug this. If I select the option "Start in terminal" in kde for /home/fedora/liveinst.desktop to see some debug messages anaconda is starting. Any hints? Sebastian