I'll try the update in parallel with my current version and let you know if there is any problem with 10.6.8. It may be a few days before I report back as something big has unexpectedly dropped in my lap.
Hi Lewis - the current version of MoI for Windows is still MoI v3.0 - the version 3.1 release is for the Mac only to fix problems with running MoI on the latest Mac operating system.