Hello Everyone, I just did a full reformat and installed a fresh version of Mac OS 10.8 Mountain Lion GM Preview. This thread is to summarize the compatibility issues I am seeing and hopefully find resolutions. Steps I Took 1) Install OS Mac 10.8 2) Install Traktor 2.5 3) Install Maschine 1.7 4) Install Komplete 8 5) Download all updates Note: Default installation paths were used everywhere. Hardware MacBook Late 2008 Intel 2GHZ Core 2 Duo 8GB Ram 512GB SSD Major Issues There were three major issues I faced. #1) NI Audio Interfaces not Compatible The new USB 3.0 Drivers are causing all NI audio interfaces to fail (in my case Kontrol S4 and Audio 2). A comprehensive discussion of the issue can be found in this thread. A temporary work around can be found here, which involves replacing the USB 3.0 Drivers with the older USB 2.0 Drivers from Mac OS 10.7.3. Also after installing the latest drivers from the service center, they still appear as not installed (which it's possible that they aren't I suppose in relation to the above USB 3.0 issue?) #2) Unable to Install Komplete Elements 1.7 MK2 Update for Maschine - Komplete_Elements_Mk2_100.iso This is the update that was delivered via email with a link to the .iso file. It is required to upgrade Komplete Elements to version 1.7 for Maschine integration. Upon mounting the .iso and launching the installer, the installer just hangs (keeps bouncing in dock but nothing happens). Force quitting is necessary to end the installer process. Looking into the system logs we see that the installer is crashing: Reading through the crash report it potentially has something to do with the new sandboxing in Mountain Lion, but it's unclear exactly if that's the issue. I do not have a workaround to this and so far have been unable to install the upgraded Komplete Elements for Maschine 1.7. #3) Service Center Randomly Crashes when Downloading Updates I can reproduce this by downloading the Traktor 2.5 Remix Deck Content Update. However, the crashes are also random and frequent while downloading other updates -- the remix content is the only one I have been unable to fully download without a crash. There are also crash logs for this: I've attached both log crash files. Minor Annoyances 1) To install certain legacy applications, you still need to run the Leopard Installer Patch as explained in this thread. In my case this was necessary to install the "Battery 3 Artist Kits Installer" update. 2) Battery3 content updates are offered in the service center for legacy products I do not own. Battery Update for Synthetic Drums 1 and 2 is one example. 3) Content and Manual updates are not auto-installed into the correct directly and it can be unclear if you have the latest versions since they aren't detected by the service center. In general, I think managing all the updates after a clean reinstall is the biggest pain point of NI software. Other than the above, it's been a pretty smooth reinstall. Looking forward to getting some fixes, especially for issue #1 and #2. Keep up the good work NI. You guys seriously do amazing stuff.