are the break-out cables the same? as i just bought a X1550 for a media rig but it didnt come with the break-out cable so used my 8800gts's one which looked the same but i dont get the blue colour channel tested the cable on the gts works fine and tried the x1550 in 2 pc's with the same issue (via DVI again its fine, only having problems with HDTV component)