[Saty Mahajan]

Here’s my original post (on Adobe’s forums) that Karl was talking about. You can turn off HT one of the following ways. Sorry the app isn’t working for you Damian. Are you running a 2009 Mac Pro (i.e. Nehalem?)

<--- QUOTE The problem is hyperthreading. If you disable hyperthreading AE CS3 will function normally.There are a few ways you can disable hyperthreading. 1. Through the processor preference pane (included with Xcode). 2. Type this into terminal (without the quotes): "hwprefs cpu_ht=false". 3. Build an applescript application (so you can keep it on the dock): Do a spotlight search for "AppleScript Editor". Launch the editor and put the following line of code in there and save it as an application: do shell script "hwprefs cpu_ht=false" 4. Or just download this little AppleScript application that I wrote that help you turn on/off hyperthreading: https://www.satymahajan.com/changeht

Please note that if your computer sleeps, hyperthreading will be enabled on wake up, so you’ll have to disable it again. Other than that, I’ve tested this on both Leopard and Snow Leopard and it works. Good luck!

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Best,

Saty Mahajan