I use a Trackman at work on a PC. On my MacMini I've got a black Logitech M-U0007 aka M500 - http://www.logitech.com/en-gb/428/5743

I just noticed there are Mac drivers for it - I've never needed them. I would like to enable "scroll-by-a-page-at-a-time" which isn't there by default, but everything else is. I'll try the drivers...

FWIW. :-)

[edit:] Still no s-b-a-p-a-a-t. :-(

Cheers,
Scott.