ASI Studio 1.3 working 24 hours ago but not today. As you are also experiencing, transient flash of selection screen. Same on 2 other computers running Windows 10 (fully updated but with no update in last few days); Kaspersky antivirus (tried turning off). Agree with you that individual programs will open if opened directly from root directory and, therefore, issue must be with initial menu screen. Tried removing driver and program and reinstalling; no difference. What could have happened in 24 hours?