After updating xchain to 1.0.1-8 in unstable, I cannot run it - it says "Couldn't execute /usr/bin/wish8.5" - Before the update it worked just fine. I believe this is because I had the wish which is provided by the tk package wish provide a /usr/bin/wish, and xchain is depending on either tk8.5 OR wish. So - the change in xchain 1.0.1-8 will only be fulfilled if the tk8.5 is installed, but not if the tk package is installed. /Andreas