Echo: micophone and line-in mixed up?

[R031]

This is my 3rd topic I had to open (sorry for that, the other 2 can be
removed) because I have problems with my microphone. When I go on like
"Teamspeak 2" the sounds I hear are send to the others as if they were coming
from my microphone. Furthermore, my microphone picks up nothing of what i
say.

What causes this problem, and more importantly, how can this be solved?

I tried to install the sound driver for my mainboard:
Creative Sound Blaster 7.1 channel HD audio driver
link:
http://global.msi.com.tw/index.php?func=downloaddetail&type=driver&maincat_no=1&prod_no=169

And I checked the microphone on another pc, it just worked...

Any solution is welcome because this problem is now with me for a month :'(
and i would like to be able to chat again...

 

[Mark L. Ferguson]

In the recording area, mute the line in, and unmute the mic.

start/run, type:
sndvol32

Options menu, Properties, scroll down to microphone, and line in, and check
the boxes.

OK

Next use options, properties to put a dot in 'recording', and OK again.

Note the mute box below each slider.

 

[R031]

That doesn't work, if I try to unmute microphone it mutes Line-in and vice
versa. However, microphone is still prety much non existant in both settings.
When I unmute microphone I get a noice going like "vvvvvvvvvvvvvvvvvv", when
I mute the microphone again it is gone.

 

[Mark L. Ferguson]

When your speakers are so close and loud to the mic that the sound re-enters
the output, you get 'feedback' like that.

 

[R031]

I have a headset and the speakers were off, so i doubt that would be the
cause of it. Furthermore, if I were to run on speakers, how come that my
voice isn't picked up at all?

btw. thanks for the replies, i appreciate it.

 

[Mark L. Ferguson]

Something is definately different abouyt your system. My mic and Line in work
symultaniously. I would suspect driver damage, or a broken sndvol32.exe file.
You can find sndvol32.ex_ to expand from the setup CD of files. Device
Manager will remove and replace drivers.

 

[R031]

That might be something to try, but what do I have to do? Do I have to insert
the windows cd, or do I have to look in the windows files? Can you explain
what I have to do exactly?

This might work so thanks for your comments