I have crossed a few items with mame ce3 and want to know if there are any solutions to them.

1. I have not found a way to move and fire at the same time. I have moved the fire buttons to 3 & 4, but still can not move and shoot. Is this a 'keyboard' bios issue?

2. I notice that almost every game appears to lose some of the right hand edge of the screen and rotate is 180 degrees not 90.

3. This last question is just a personal request. I have always loved to play BattleZone, but can not seem to find or map the correct keys to move left and right.

Thanks