Actually it did start after a few minutes so this is new. It will be very interesting to see if I just have to wait 5 minutes after the initial start and the first splash screen is seen. Maybe SU10 will help. I just reformatted the computer a month ago and this black screen started about 10 days after that, Before I had everything fine since Aug 2020. Thanks for the help
Well it runs, still takes 8 min after the initial splash screen to the Asobo screen, all black in between. That is fine, maybe it will fix itself someday