Logitech 250 Headset "hear voice played back skype" Questions

...hear my voice via the microphone through the headset. However, when I use the sound recorder on the pc nothing plays back. Also, when I use the Echo123 test facility on Skype, only about 3 seconds of ...

...hear the recorded lady's voice giving instructions clear as a bell, then I leave a message at the beep. When the recording plays back my voice sounds just like everyone described. I can only hear ...

...hear background noises on my PC but not my voice When I tried to talk to someone on Skype, they said they couldn't hear me. At the same time I had MSN open and someone sent me a msg and it made that ...