This issue is fixed in Scratch Live 2.3, we recommend that you update now.

Apple Macbooks released in February 2011 are freezing when connecting to the Rane TTM 57SL, which requires force quitting the Scratch Live application or even restarting your computer. This is because these computers are booting up into 64 bit mode by default.

Users will need to boot into 32 bit mode for full functionality. We are looking further into this issue at present, and will keep everyone updated with the findings.

NOTE: This issue is affecting the Rane TTM 57SL only, and not other Rane devices.

Workaround

This workaround forces your computer to boot into 32-bit mode to get things working properly.

NOTE: You will need to do this each time you boot your computer.

1) Turn off your Mac.
2) Power up your Mac.
3) While your Mac is starting up press and hold the 3 and 2 keys at the same time. This will launch Mac OS into 32 bit mode.

NOTE: There will be no noticeable performance differences using Scratch Live between 64-bit and 32-bit modes.

Check if you are in 32-bit mode.

Check to see if you have booted up into 32-bit mode rather than 64-bit mode.

Mac OS X 10.4, 10.5 & 10.6:

1) Click on the Apple icon in the top left corner of the screen.
2) Select 'About This Mac'.
3) Select 'More Info'.
4) Go to 'Software' on left side.
5) '64-bit Kernel and Extensions' should say 'no' if you have booted into 32 bit mode.

Mac OS X 10.7:

1) Click on the Apple icon in the top left corner of the screen.
2) Select 'About This Mac'.
3) Select 'More Info'.
4) Select 'System Report'.
5) Go to 'Software' on left side.
6) '64-bit Kernel and Extensions' should say 'no' if you have booted into 32 bit mode.