I recently purchased Corel Knockout2 at a retail store ($99.99). The minimum requirements on the outside of the box stated the program would run on Mac OS X, and Adobe Photoshop 5 or higher. The package was printed in Aug 2006. After opening the box and reading the readme file on the disk I saw that it would work only on Mac OS X.3, not the current OS x.4.9, the current version and Photoshop 5, 6, or 7, not the current CS2 or CS3. After spending 4 hours trying to email Corel from their website (didn't work), and spending over an hour on hold I was told that they could do nothing to rectify the situation. The retail store also will not refund opened software packages. I feel that this was false advertising and totally misleading.