FYI.. I just built this pc and it consists of: Abit KG7/AMD XP1600, Pioneer DVD106s, 256MB Crucial (reg/ecc), ATI Radeon VE & Santa Cruz TB. I put in a dvd and the ATI player opens in a small screen.. Whether I go into the menu or just hit the maximize button the screen will go black and the pc will restart. What's wrong?