Hello, my machine is a MacPro 4,1 (2.66GHz quad) with 12GB of RAM and a bunch of HDD's. It currently runs 10.8.5 I have iStat Menus installed, and it keeps me informed of a bunch of stuff going on, CPU/network/disk activity, temperatures, and memory use. When you look at the attached screenshot, you'll see that the memory is nearly maxed out, but Cubase is the only application running (uses 4.33GB) (except for some possible background activity from Box and Grab). Two big chunks of memory are labeled 'Wired' and 'Inactive'. Can somebody explain what that means? Is there a way to manually free up this memory? It is starting to affect performance a little, but the upgrade to 24GB of RAM is still pricey. Thanks.