I am going to be downloading the powerstrip program soon to adjust some overscan.  Question is how do I change my resolution in MAME.  My mame.ini has a bunch of entries for screen resolution.  Like it will have a bunch.  Right now everything says  auto???  What do I change thsoe too.  I am wanting to use 640x432 when I download powerstrip cause some of the top part of the scores are barely cut off some.