HI, I have 2 types of flash for the sony a100. One is on a hot shoe and one fits directly on the a100. The one on the hot shoe is i take the picture then it lags for processing. the one that fits on the camera the flash dont go off all the time. What am I doing wrong. Im about to return this camera since the flash is a bit frustrating I have to use the external as im involved some sports compeition such as cheerleading but the flash is not flashing when it should. Is there a setting i need to set that it will flash all the time. Please help me. Im getting frustrated.

Thanks,
Marcie