I have a razer blackshark headset and have it connected to my logitech g510 keyboard (which has onboard soundcard) and this has been working for a long time. However when i turned on my pc yesterday skype was saying issue with playback device and i wasn't getting sound at all. I used the ports in the back of my pc which works but the sound quality is bad and i cant use the mic mute button etc that are on my keyboard. I have tried other headphones in the keyboard and they also don't work so i assume it is my keyboard at fault. Any ideas on how to sort this problem if (it is possible) are much appreciated.