mame lightgun problem

[cobey]

I just switched from mame32 to mame with mamewah and am having a problem with my lightgun, act labs tv gun. Basically gun moves the crosshares, the screen lights up, but the games do not register the shot. When i look at the controls for the game, it will have "space" for player 1 button 1, not mouse button 0.
here are my settings in mame.ini
### Input device options ###
mouse                   1
joystick                0
lightgun                1
dual_lightgun           0
offscreen_reload        1
steadykey               0
keyboard_leds           1
led_mode                ps/2
a2d_deadzone            0.300000
ctrlr                   xarcade
paddle_device           keyboard
adstick_device          keyboard
pedal_device            keyboard
dial_device             keyboard
trackball_device        keyboard
lightgun_device         keyboard
digital                 none

any help would be appreciated, i really dont want to go though every lightgun game changing p1 button1.

[cobey]

never mind, i just went into the default player1 settings and made button 1 space or mouse button.