I've followed the instructions I've found online and from MAME'S own site.  I just can't get them working.  I downloaded a couple files off this forum that has the settings in a .txt file that i copied into my mame.ini and raster.ini files.  still no scanlines.  when i run a game and hit the ~ key, i don't get any options for scanlines.  just sound options and brightness, contrast, gamma and stretch.  nothing about scanlines, nothing about masking.  I'm at a total loss.  I have no idea what's going on.  I'm using big box and am in the process of building an arcade cab and if I can't get this to look right, i'm switching to another platform.  has something changed with the recent releases of MAME?  Am I just missing something?