I had the same problem with all unitronics software that i tried. Problem is related to HD-resolution and the choises which were made during Win7 installation.
However I managed to fix the problem by following these instructions:
http://blogs.msdn.com/b/developingfordynamicsgp/archive/2009/11/25/windows-7-bitmap-fonts-and-microsoft-dynamics-gp.aspx
I hope it helps!
BR, J