After a miracle. Have just bought a set of headphones+ mic to try out Skype. Works well apart from the fact that I can use the headset or the monitor speakers. If I had bought usb headset I could use both at the same time. Saves scrambling beneath the desk when/if I get a call!
So the question is , how can I plug my mini jacks into a usb port. or do I just go and buy another set