– Mac Pro 8-core is now compatible with Pro Tools HD 7.3.1cs3
– Mac OS 10.4.9 is now compatible with Pro Tools 7.3.x. As usual, use the combo update instead Apple’s automatic Software Update. Even if you already used the Software Update, it’s recommended to run the 10.4.9 combo updater to fix eventual prebinding issues. More info below in link “Mac OS X Requirements with Pro Tools 6 & 7“.