MAC SMALL  Sadly Brian Clark will no longer take money (mine was returned) or issue serial numbers for Thoth.

The best such program around is now officially dead, although still works fine if you have a serial number.  
(Version 1.8.3)

GARRY  I was about to download the update but having read the reviews I think that I will give it a miss. Most disconcerting was notcomment from Micromat themselves. I have used 10.1.2 and it takes around 10 hours to work when starting off the CD but it seems to work - and it *is* the only option from OS 10. This time I'm going to run it off another drive - I'll let you know how it goes!

I include email address as anonymous comment has little value.  
(Version 1.1.3)