gary;
Finally got it to work
I deleted the chuck file out of /usr/bin
Unpacked the chuck installer package, copied it to my applications.
Odd, it seems that /usr/bin/ plays a bit of a different role on OSX than it does in Linux. I started to suspect that already a few days ago when a friend let me poke around on her MacBook and I noticed dirs like that were completely invisible from the graphical shell.
I made a mental note of this as I think I naïvely recommended to a few people that they just copy chuck to /usr/bin/ on their Mac, I better stop doing that. I would think that there must be a better better way of notifying the user of the issue than simply ignoring the command even if I can see the reasoning for demanding things like chuck be in a aplication folder (on Linux one does need to make a mental note of what one dumped into /usr/bin/ when one manually installs things there).
At any rate, it's good that things work now.
Kas.