BITRAN  I just bought an Iomega 500 gig drive for a mac mini.

the harddrive works fine I connected it by firewire. A OK up to this point. next the software install for retrospective. thats how far I got, I installed the software and then tried to start the software double clicked on the Icon .....nothing

tried to restart the computer went through that process a number of times. nothing still after a few more attempts gave up. I am no longer willing to spend hours trying to setup software that is not made for the mac. been there done that and there are too many manufacturers of great programs for the mac and exclusive to the mac, to have to depend on a manufacturer who can't seem to get it right. no wonder it is a give away only with hardrive storage devices my recomendation is try other great programs for the mac and remember the reason you use a mac. because it is NOT windows.   
(Version 6.1.126)