I'm not sure where to go with this from here, without knowing more about what's going wrong.  Just to make sure there wasn't anything wrong with the Tcl/Tk build or some manner of issue with things not being properly cleaned up or something, I set the 'custom' builder on that buildbot to build cpython#2.7 and got the same result: http://buildbot.python.org/all/builders/x86%20Windows%20Server%202003%20%5BSB%5D%20custom/builds/9

I've got a few changes lined up to try to get some more output (namely, add a 'print cmd' to the test_tcl test, and hack up Tools/buildbot/test.bat to just run the Tcl/Tk tests in verbose mode to try and get something from test_ttk_guionly), but I don't think we want to pollute the main repository with them.  Which direction should we go from here?