Limitations of unregistered version

   Limitations

    The  unregistered  version is only intended to give you overall feeling
of  how  software  works  and  to  let you find out if it is usable on your
system.  The following features are not present in the public release:

    *  dithering   -  the  only  supported dithering type is NONE, and that
      shows in 15- or 16-bit pictures with smooth color gradients.  ;-)

    * rendering  to  screens  bigger  than  640x512  -  which  is generally
insufficient for professional work

    Additionally,  the library lets you make only 50 renders in one session
and then it will deactivate itself, showing a requester reminding you about
 what you should do  to get full, uncrippled version.