The TaxCut web site describes a printing problem with the Macintosh version of Kiplinger TaxCut Deluxe: "Before filing your return, please check that all the forms in your return printed properly. Certain combinations of printers and printer drivers may cause a small portion of the text to be cut off on the left, right, or bottom margins. Solutions to this problem will be posted here soon."
Steve Wood also had problems with electronic filing with TaxCut. Tech support suggested it was an extension problem, but could not suggest a specific extension as the likely cause. Steve had the problem even when using only Mac OS base extensions.