Dear Folks!
I found the solution to the problem mentioned:
The problem is that MathCad 14 does not work correctly under windows 7 (32 and 64).
The solution:
Install MS Visualstudio 2005 prof edition before installation of MathCad. (I do not know wich components of it helps, but it solved the problem)
I hope it helps for someones!
Regards
Z. Turzo, PhD
University of Miskolc