The 4.5 software is here.  I love the upgraded margin clarity and refined mills.  However, the software does crash a bit.  Unless you have a recent computer tower,  you may need to upgrade to make this software work. Sorry!  However, this software is the closest I have seen in performance to 3.85 since introducing the 4.0 platform.  View my intro video.  There is a general overview for each section of the software in the 4.5 Software Channel.  More videos will be coming soon in the 4.5 Channel.   View 4.5 Overview Video