have amd64 dual core motherboard, running vistax64. vista told us to do somthing to improve operation and restart computer. when tried to restart computer it would not even turn on. so removed battery from mother board to reset to factory settings. computer then would turn on, but after first screen telling system, got loading bar. it finished, but didnot beep. got clicking sounds and screen went blank. and would not load freather. can anyone help?