i have transferred my old pc parts in to mi new antec 1200 case, a ASTEROPE GL8E MOTHERBOARD, pentium 4 3.06ghz processor, 2gb ram, 200 gb hard drive. i also included a 700 watt power supply and i put in a msi gtx 275 vga. everything runs good except the two audio jacks at the top of the case. only the mic works, i cannot get any audio for the headphone port. can someone help me