I moved my computer to a new location. When I tried to launch archicad from my tool bar it had disappeared. I went to the harddrive to launch it from there. I got a prompt on my g5 powermac
! application launch failure
The application "ArchiCAD" could not be launched because of a shared library error:
"<archicad><archicad><GSCppRuntimeLib><>"
I've been working in ArchiCAD since 1994 and have never experienced this problem.