I first tried USB Overdrive but this software would not recognise my Logitech G9. As a result the G9 was restricted to its MacOSX default 2-button operation. This G9 is a multi-button high speed gamer mouse intended for Windows only.

SteerMouse's default settings were spot on. So this G9 will be a good replacement for my MX Revolution and MX-1000 mice which both were suspected of causing hard hangs of the Mac Pro. Maybe it was the Logitech Control Center which caused my problems. Time will tell if the substitution has been worthwhile.

What can I say? SteerMouse has no problems that I can detect. A good utility indeed.