Virtual window shuts down

[rossollo]

Thanks for the suggestions. All three have been done at different times and all are currently in place and it still occurs.

I have turned off screen saving on the host, but it had been off in the past. It creates a security problem if the screen is left open.

The current work around is that I have to perform a Host-F twice when I return to the guest system and want to fix the computer screens. I will repeat this did NOT occur under 4.8.x. Do you know if there is a way to downgrade back to 4.8.x from 4.10.x VB?

Thanks for all your help.