Don't forget that Taco Bell as part of their Godzilla promotion sells those cups with peelable Ronchi gratings... -- Clear skies, Mel Bartels // Programmer/Analyst, amateur astronomer Springfield, Oregon, // USA homepage: http://www.efn.org/~mbartels mailto:mbartels@efn.org // atm, atm-digest list-owner Motorize A Dob: http://zebu.uoregon.edu/~mbartels/altaz/altaz.html