Well, seems good things don't last. After I loaded the M2 v17.2.2555, things worked fine for a bit. Then yesterday it would not allow me to save models. Then it would not open any models. I did a "repair" operation, from the Download All center, but that didn't seem to help.
In the past, a few days ago, I was able to have two models open also. But then, it would open a particular model, but not a different one.
I've got a trouble call in with SketchUp Pro support and will probably get things straightened out on Monday, but it's too bad I loose three days in the process. They've always been helpful in solving my problems, they have talented folks working the problems.
I don't want to do a complete uninstall/install until I speak with them, as I can loose huge amounts of work with a simple click of a button, which I've done in the past. I'd rather not spend the time recreating things that are already in place.
Any thoughts on further action?