I don't see an option/switch using the "icon on system tray ... will open: a) or the Enhanced or b) the Simple... ." The Avast window comes up that says it's checking the memory and when it's done it opens the AEUI.
However, I did click on ashSimpl.exe and got the SUI.
I'll go with your advice DavidR and use the AEUI so as to have access to the Pro features.
Thanks all,
Kerry