Andrew, I was able to prove to GG that the below is indeed odd, so now he can either fix it (or convince me that it does not need fixing!). gg/Phyllis

Still I found some oddity. If I just open Cin-GG, I can switch on/off itles for tracks (default 1 video + 2 ch audio) and their content by using first two checkboxes in window "View" .

But if I load video file (1 video track, 2 audio channel) AND add effect to video track - I only can effectively switch on/off content/titltlebars for audio tracks! Video track remain always with its content and titlebars. They sort of 'blocked' by effect track from this change, even if I remove effect itself!