Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
D
Which graphics card is being used by SketchUp? Changing cards might fix it. Keep in mind that Sketchup 2019 doesn't support the OS version you are using yet. The SketchUp folks recommend not upgrading at this time.