cubase resetting inputs


i’m test-driving cubase 8 elements limited edition on a pc [windows 7 enterprise sp1].

whenever i change preferences, or start or end cubase, it resets my audio interface’s inputs, setting levels to -infinity and pan hard left [i.e., turning the channels off]. i can’t find anything in the preferences menu to inhibit this feature… it’s driving me off my gourde ! how can i make it stop ??

thanks !

well, i’m guessing that the lack of replies means there isn’t an option to inhibit this behaviour.
has no one else encountered this ? is this a bug ?