Problem with my audio device

hello..................friend

I attempted to plug in a microphone on the front of the computer and all of a sudden it shuts off on its own. Thinking nothing of it, I power it back on only to find out that there's no longer any sound. I've driven myself crazy trying to find a solution to my problem.

thanks

I finaly figured it out.Power on the system and press <DEL> during the post (power on self test) to enter BIOS set up utility.

the only thing there to click on now is 'sound recorder' and when I click on that it tells me I don't have an audio device installed yet I have sound I just can't adjust it!! any ideas?

If English is not your native language then I hope you can at least read my words here