Seems Vegas "poles" the detection of key press Ctrl-Shift , when Vegas is launching . Thus sometimes Vegas "Misses" the key press . I reset rarely , but it works best to repeatedly press : Ctrl-Shift , let go , Ctrl-Shift , let go , Ctrl-Shift let go , maybe up to 5 times , until the reset Message Box appears . If Vegas Splash screen appears , then nothing happened . Close Vegas and try again .