I also had trouble with the tk dependency. When I tried to run the pre-built binary in the tarball it said it couldn't find libtk8.5.so.0, even though it is present in /usr/lib. I'm running Ubuntu Maverick.
-spencer
Could you please try rebuilding using steps I sent out in reply to Alan's inquiry and let me know if that works?
Also, forgot to mention in my original email this version AFAIK fixes all graph-on-parent bugs.
Best wishes,
Ico