I have a new MacBook Pro with Leopard 10.5.3 and QuickTime 7.5. I plan to upgrade my Xpress Pro 4.3.1 to MC 3.0. Am I correct in thinking I need to uninstall 7.5 and install 7.4.5 in order for this to work? I am new to all of this, have read most of the postings here, and it seems this is the only thing... (read more)