Ready,Set,Go! 4.5a, which is listed as fully compatible in the "System 7.0:
Compatibility With Selected Hardware and Software" booklet has some
compatibility problems with printer drivers later than 5.2 (System 7
drivers are 7.0).
Non-PostScript pen lines and fills will not print and may result in the
error message "Undefined error, Command-S 8. A PostScript error has been
generated by the LaserWriter extension file. The document is OK but cannot
be printed." PostScript pen lines and fills which are located to the far
left of the Ready,Set,Go! menu work fine.
LetraSet will not be updating Ready,Set,Go! 4.5a, but will continue to
support the product. They recommend Design Studio 2.0 as an upgrade.