https://forum.3dconnexion.com/viewtopic.php?p=76434
Also, just prior to this, I was starting to see LCD glitching, sometimes across almost the entire screen as shown below, and sometimes a smaller bar of glitch biased to the bottom half of the LCD.

I have just upgraded the driver to 10.9.8 from 10.9.7 with no change. The glitching has not returned recently, so I'm not sure if that particular issue is resolved or not after this driver update, but the lack of text and icons certainly persists.
Different USB ports offer no change, no does stopping and starting 3DXWare. I have not tried rolling back to an archived driver version yet.