Maybe "freeze" instead of crash is a better description. When I try to add the folder to the AV it just wants to open the folder but not add it, but I will keep trying!
As for the GPU it was fine with the other versions.....I realize I'm going to have to get a new computer by Oct. 2025 end of support, but thought I could keep SL until then.
Thanks for your help, I'm inspired to keep looking for the solution! One last question should I empty the cache on the viewer?