Exact same problem (freezes - for me on save). Exact same fix (disabling OpenGL hardware accelaration). Using Windows 7 Enterprise 64-bit SP1. AMD Radeon HD 8750M 1GB driver 13.101.1.0. SketchUp Make 2015 (15.3.331 64-bit).
Worked fine with older version of sketchup - broken on upgrade to v2015.