Gerda Strobl wrote: > Dear all, > > I have the latest tcl8.4 installed . > But it is strange-I cannot find any tk.h in /usr/include/tcl8.4 > There is only a tcl.h (is it that one?). no it is not the same (that's why they are called differently;-)) tcl!=tk you also need to have tk8.4-dev installed mf.adsr. IOhannes