Maths Circus Act 4 FAQ

 Q. I have just installed a new Windows on my computer, and Maths Circis Help menu item no longer works.

 A. Recent versions of Windows no longer support the help file format used by Maths Circus. You can find a complete explanation and download to fix this problem here.

 Q. I have just installed Mac OS X 10.7 "Lion" on my Mac, and Maths Circus Act 4 no longer works.

 A. Maths Circus Act 4 is a PowerPC app. With the introduction of Lion, Apple no longer supports PowerPC apps.


    • If Maths Circus Act 4 is installed on your Mac you can download and install a free patch from here.
    • If you want to re-install and you can provide proof-of-purchase, you can order a replacement CD from us (see our UPGRADE policy)
    • If you want to re-install but cannot provide proof-of-purchase, you will need to purchase the full retail package.