I have the ASUS P5KPL-cm motherboard and Antec 300 case and for some reason I have no audio. Computer is not even recognizing any audio hardware. No sounds play at all, no volume controls are accessible since there is no audio to adjust. I have checked that my system sounds are not muted and ran the services.msc and made sure that audio was enabled. I have all the drivers installed and have double and triple checked that they are the most up to date versions. I have the HDA plugged in but I don't see a slot for the AC'97 maybe a problem? Let me know what you think.