Have a Mac Mini 10.6.8 Intel 2 Duo Core and want to upgrade from 6.0.2 to 9.0.1 Our bank has requested that we upgrade as soon as possible for security reasons, I have tried several times, but the upgrading stops with 4 minutes still to go. The upgrading seems to work with two steps. First with a form with a line filling with blue. It goes on and on. Once I have reached the nexr form that has a line that fills with blue. It goes on until it stops with 4 seconds to go.