What is wrong with my comp.

Asked by brice0825 (36) September 25th, 2008 from iPhone

I need help fast. For some reason when ever I use programs to talk .(vent,games..etc) I used my comp. Built in mic but it was loud static sound on every ones comp. And I got a plug in mic with the same program . Also what does it mean when I play a computer game and it works fine for 10 min tops and then it slows down and gets jumpy . Ad never runs smoothly till I start it over again . Need help . Thanks