You are not alone. Over time, I've had several problems running programs that others are running and discussing. I am sure that it is a consequence of some local setting in my computer but even with a brand new machine, running with large memory and high speeds, some of the programs stall or don't load. Who knows why? I doubt anyone can sort out all the weird details to find the answer. I'm still trying to find a pattern of programs that fail to work based on the author of the program. Maybe their machine configuration and the PTE compilation create an exe that results in failure to run at my end. Like I say, who knows?