BTW, 10.4.4 and Cat 3.31h18 are running fine, i am using with the same reliability than 3.3g21. And may be is my impression, but 10.4.4 looks and Catalyst looks just a bit more powerfull than 10.3.

Like running 4 videos just a bit smooth than on 10.3

another thing, Cat uses any of the new CORE IMage Funcionalities?

Thanks again