The default plt executables (the ones at /arch/unix/bin) are switched, so you get an always recent version. If you have multiple versions of plt in your home dir, you can remove them. Also, if you run something like `drscheme -svn', you get the nightly build version. -- ((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay: http://www.barzilay.org/ Maze is Life!