BazLightyear

Please help. A new member and new user of DCS. Great sim but omg the replay system seems a nightmare. Could someone please tell me how to get rid of a graph that has suddenly appeared on dcs 2.0.2 replay playback. It's at the bottom left of the screen and has different coloured lines projecting some kind've input information. To my knowledge I haven't pressed any obscure key bindings. It's not linked to the 'labels' (LShift+F10 etc) or the info bar (LControl+Y). Thanks for any help. Baz.