Hi Fury,
I'm new to the forum but I saw your post and may be this will help. I'm currently running Pro Tools LE 8.5 on Lion 10.7.4 with no flaws at all. In fact I owned PT 9 and sold it due to all the bugs and went back to PT LE 8.5 and have not had any regrets. I know you mentioned you are running the MP version but the steps are the same. I just set a buddy's system up last week. Before you install anything there are 3 steps to do. 1) Go to Library/Application Support/Digidesign/Plugins(DRAG THIS FOLDER TO YOUR DESKTOP)only if you have other plugins other than ones included in the PT install. 2) Delete the design folder you just went to in Application support. 3) Go to your User Name/Applications/Digidesign(DELETE THIS FOLDER). Now only after completing the previous 3 steps can you get started. What I did was clean install PT LE 8.0 FULL INSTALL( NOT THE UPGRADE) this is very important. After installing and restarting your system install the PT LE 8.5(UPGRADE) system will restart and your almost there. Now will be the time to install the latest M-Audio driver for audio interface you own. This may require a system restart as well. Last step is to make sure your ilok has the proper auth for MP PT 8.5. If had plugins that you used in the plugin folder on the desktop now would be the time to place the back.When opening up PT you may be prompted to type your serial in so have on hand, If you follow these steps correctly your should be up and running in no time.
Hope this helps!
