just started building a new computer mother board is a biostar H61MU3 1155 intel socket with g620 dual core processor. trouble is whenever i turn it on to boot every seems to work fine i get power to the board the ram tested ok in another machine etc. but i cant get any video feed no matter what monitor port i use and no matter what monitor i use ive tried the hdmi, the vga and the dvi ports as well as installed an old but working geforce 8600 nvidia graphics card in the board to try n get output but still nothing...was hoping someone out there might have some advice etc. on what the potential problem could be as the board seems find i just can't get video...