I copied the embedded tcl 'etcl' http://www.evolane.com/software/etcl/
to the kindle and played with the tcl part. tcl works just great. when I try to run the Tk part it seems to work but nothing is shown. I used the "Gui Launcher" but on launch no gui is seen. also in xtrem I do not see a thing but no error.
any hints on how to approach this? I am not an expert so I probably miss something fundamental.