ZimMY

this could be an easy fix! hook up the mic to the proper ports to your computer. now. make sure the drivers are working! if the headset or mic came with them.
now, goto your tool bar on your desk top and open the mini menu. see the little speaker with sound lines coming from it? right click it, and "adjust audio properties"
that should bring u to a window named sounds and audio devices properties.

goto the audio tab! make sure you have your sound card selected in the sound playback section. make sure you have the right sound recording selected. and don't worry about the midi section. now go ahead over to the voice tab make sure the right things are selected there as well. ( for me, everything is set as my sound card )
now, under either playpack or default device section, hit valume....

goto the mic area, make sure the volume is up, and hit into the advanced area and make sure the right things are done.. tho i do think its just how to hear it differently

if this does not fix it. then make sure to mess around in the options within the programs u use. and make sure everything is in check.