What is your returns policy?

We are a very small enterprise. Defective software may be returned to us free of charge in exchange for a new copy. Please email us at support@shirreware.com for instructions. All other sales are final. Windows users, especially, should consult the "System Requirements" section (select the tab, above). If you are uncertain whether our software will work properly on your system, please download the available demo (select "Extras", above) and run it. If the quality of the demo is not acceptable, neither will the quality of the full program be.

Upon starting the program, I get a main screen with very large buttons and controls. I find it hard to select the option I want from the list.

The problem here probably lies with your monitor resolution setting. Labyrynth is designed to run under a resolution of 1024 x 768 pixels. A resolution setting higher than this will cause the screen controls to appear "stretched" and to overlap one another. Setting your resolution to 1024 x 768 should correct this problem.

I keep getting a "There is no disk in the drive. Please insert a disk into the drive" error when I try to run Labyrynth, even though the dvd is in its drive. What's wrong?

One of the first things Labyrynth checks for upon starting is whether the dvd is in its drive. On Windows, this entails checking all the available drives one by one. On some Windows systems, an empty drive is just passed over. On some others, this check generates the above error message.

The workaround is to click "Continue" each time the message comes up, until it reaches the drive containing the dvd, at which point the splash screen will be displayed and Labyrynth will continue.

At what level of logic proficiency should my student be?

Labyrynth was designed for students taking logic at the undergraduate level, for the simple reason that relatively few high schools encourage (or even offer) logic instruction for their students. This is beginning to change, however. High-school students currently receiving instruction in Aristotelian logic will likely find Labyrynth™ interesting, even highly engaging, and not beyond their abilities.