Hello everybody; I've just installed alliance on a Unixt system which has Solaris 5.8, when I tried to follow "Design of a 1-bit Full Adder Using Alliance " tutorial every thing goes fine until I reached " Synthesizing the logic" , when I used scmap I found the following error: Generating Expert System ... Cell 'fulladder_x2' Unused Cell 'fulladder_x4' Unused Cell 'halfadder_x2' Unused Cell 'halfadder_x4' Unused Cell 'mx2_x2' Unused Cell 'mx2_x4' Unused Cell 'mx3_x2' Unused Segmentation Fault(coredump) Any suggestion why this Segmentation Fault occured and how it can be repared. Thank you for your cooperation.