Uh oh. I'm working on bringing over the offline version of webglreport, but I was able to get the lab machine drivers updated to an Intel-provided version that's only a few months old, and the symptoms on Cesium ("initialization failed") remain the same. I expect webglreport to tell me the same thing ("supports WebGL, but it is disabled or unavailable"), though I'll keep trying to actually get it to run, just to make sure.
Assuming that's the case, and given that I'm running "good" drivers now, is there anything else I can do?
V/R
James