Just installed the matrix infinity by a professional installer. When I put it back together all I get is a black screen. My LED lights are going from RED to Green then to RED again. I have a version 9 board. Also..When everything was done we took it apart and check the wires. We did get it to come on and eject the cd tray but that was only when the board and power supply was holded down...Is this problem with ground issue somehwere?????? Please help..