Hi
This “blank window thing” also happens on all the computers which we are running in the company where I work. These computers are extremely powerful machines with endless ram, all operated with 8 core Xeon processors and additionally fired with 2 fast Nvidia Quadros.
I will bring more detailed information as soon as I am in the company again, because in another post here is asked for a recommendation for a fast rendering machine setup - and yes, these computers are really fast.
Now also my mobile workstation (notebook) works with a 4 core Xeon and I can say with certainty that I have never had a more stable system (which is however not a Shaderlight theme). The number of SketchUp bugsplats for example has decreased significantly. This 4 core (mobile) Xeon does not increase the render speed in comparison to a comparable i7 equipment but editing a more than 1,5 GB PDS file (no joke!) is not a problem, parrallel to a running render process and 10 opened other things and my chronic messed up desktop ;-) ...
Best, Egie