Sorry for the late response, I was typing a post and then the darn thing started to lag when I tried to post. On both computers I have tried 3 different mics on both of them. They were not the same brand of mics. All 3 did not work. Both of thier plugs are in the back of thier computers. So I guess it's something to do with thier computers because there are other computers that are the same as thier's and those worked.
Thanks in advance, again.