Try to "Reset Preferences" from main settings if that will help.
Hello again, after I tried what you recommended in this, problem still occured... so I decided to let it go for a couple days, this morning when I turn my PC back on, the old 574 version popped up and surprised me... it seems that the problem is fixed on its own now and I can run the latest beta. Thanks for your interest in my problems Martin, I really appreciate itThis is a quite weird issue, haven't seen such try. Not sure, but try to also disable the "Shared Memory Support" option.