Please contact us with the following details:

1. Did your Mac come with Mac OS X 10.5 (Leopard) pre-installed, or it was upgraded from Mac OS X 10.4 (Tiger)?
2. If you installed the operating system, what settings did you use? e.g. ‘case-sensitive installation’.
3. Whilst using the disc, what error message appears and at what stage does it occur? (e.g. during Word Practice, as soon as the program starts.)

Once we receive this information, we can help you further.