Thanks guys... Last night I dumped mameui went back to mame cmd, changed 'effects <none>' to 'effects <###>' in the .ini Went to my usual test rom '1942' It worked and the png overlay was working. Went to 64street and overlay was working there as well Positive result. initiated GameEx\mame\1942(verticle game) and the effect was gone. mmm initiated GameEx\mame\64street(horizontal game) and the effect was working. mmm Went to GameEx advanced config, and turned of use bezel then I initiated GameEx\mame\1942 and the effect was working...but had the graphic of the 1942 bezel running and the game running in a rather small window within. Tested a number of both verticle and horizontal roms with the same result This for me is great, all I need to do now is get my verticle games to play using as much of the screen real estate as possible and I can start customising the GameEx ui HooRah