I don't generally run with ALM turned on because it hits my frame rate too hard, so I only noticed this morning that I can't turn ALM on in Cool VL Viewer 1.30.0.13. I can do so in 1.30.0.9, the previous Mac build.
When I go into Preferences and click the Advance Lighting Model check-box, the tick appears, but I don't get the usual "preview" of the ALM graphics, and when I click on the Apply button, the check-box simply unchecks, and I remain in non-ALM mode. Clicking the OK button produces the same result.