I just installed Houdini Apprentice on an old Mac Pro 3,1 w/ OS 10.11.6 and I can't seem to get it to launch, however, HQueue Server is just fine.

Regardless, of how I launch the app I get the following error msg,

>> Illegal Instruction: 4


I have tried,

- launch via Finder in /Applications ( just crashes )
- launch via command line ( get the above error )
- launch as client via hqueue ( log shows above error )
- launching htconfig ( get the above error )
- latest 3 versions of Houdini with same result


Machine specs are,
OS: 10.11.6 El Capitain
Model Name: Mac Pro
Model Identifier: MacPro3,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 3 GHz
Number of Processors: 2
Total Number of Cores: 8
L2 Cache (per Processor): 12 MB
Memory: 8 GB
Bus Speed: 1.6 GHz
NVIDIA GeForce 8800 GT

Thanks for any help you can offer! Would love to get this machine running as a render client.