Can't see IR images on Astra Stereo

I would like to view the IR images on Windows. I am running the AstraSDK-v2.0.17 MultiSensorViewer. I see RGB and depth just fine but when I try to switch to see the IR using the ‘g’ or ‘i’ keys, the application locks up. I tried changing the orbbec.ini files to reflect the 640x400 resolution by choosing the Resolution = 17 option–still didn’t work.

Other ideas?