just:in v3.0 changed the way how the software sees the video devices, because we faced some problems in situations with two or more AJA devices within one setup. Therefore customers with AJA setups have to redo the channel settings. So please follow these steps:

• Go to /Library/Application Support/ToolsOnAir/Just In
• Delete the config.xml
• Start the new just:in engine
• Redo your setup