Tcl/Tk Compatibility ==================== ... is much worse than I thought. Not only I am not able to run the MatView [1] on a modern Linux but I'm not even able to run my own (and not so old) software [2]! It's stupid: I tried to do come computations at work and I was forced to stop it and use my home worksation instead. The abovementioned stuff works with teh Tck/Tk 8.4 but modern systems have something like 8.6. An the differences are so bit that things are broken. I have to look at another GUI toolkit. But it will be a problem: I neet something backward-compatible. Thus both the Qt and the Gtk+ are out of game. References: [1] http://www.csm.ornl.gov/~kohl/MatView/ [2] git://github.com/jurabr/tensor