Help with MAPMAKER/EXP 3.0b needed

[Glaser Walter]

I am using the PC-Version MAPMAKER/EXP 3.0b (FTP from genome.wi.mit.edu 
mapm3pc1.exe mapm3pc2.exe )
When the Program starts the default linkage criteria are both set to zero and 
not to LOD 3.0 and 50cM as stated in the manual. When I try to change the zero 
values with 'default linakge criteria 3.0 80' the program reports: 'error 
illegal value' and refuses to change the values. 
Thanks for the help in advance 
          Walter Glaser
          Inst. of Microbiol. and Genetics
          Vienna Biocenter
E-mail: walter at gem.univie.ac.at