Hi Rablack, I checked and am not using b2s backglass in pinballx, just backglass images from front end media. I don't think something is hiding the video as it does not hide still images when they are used as toppers. Also the exact size topper screen (as specified in my settings) is still shown on the screen using video toppers but it is strangely just a black box, it must be a conflict somewhere in windows or in my graphics driver. I should have also mentioned that i remember now that I had the same issue when trying to play animated backglass videos for fx2, the same black screen for video but fine for a still image. I am not too concerned as the video toppers do at least play during pinballx front end and as they are not interactive they are not so important to me during the game, I now understand that the pinup feature soon to be added to vpx for interactive videos, will require that topper videos are not used from pinballx, but will work well with topper images from pinballx used and placed below the pinup interactive video clips. Looks like I will be fine for them to work , so I am happy with the situation. However thanks once again for all your effort in trying to help, it has been much appreciated. Happy Pinballin.