There are so many instance of function calls selecting on the selected device to access particalur functions that it would be good to define some standard ways of doing this. Do any lisp gurus have any suggestions (or think this is a bad idea? For instance you could do something like: (defdevmeth foo () "Some description.") which would call x-foo for x devices mswindows-foo for mswindows etc. You could also have call-devmeth or something. andy --------------------------------------------------------------------------- " .sigs are like your face - rarely seen by you and uglier than you think" Dr Andy Piper, Technical Architect, Parallax Solutions Ltd mail: andyp(a)parallax.co.uk web: www.parallax.co.uk/~andyp