Mic Can't get the mic to work. Have installed webcam & mic etc, but cannot seem to get the mic to work, i have checked all my control panel settings in audio & sound etc etc, the pc says their is a mic plugged in to the correct port, could it be the drivers on the sound card ??

You do not say what sort of mic you have - if its a built in laptop mic, a standalone mic or one built into the webcam.
It would also be useful to know what your OS is and what chat program you want to use the mic in
However we can generalise and hopefully put you on the right track

Have you set the mic you wish to use with your webcam as Default ?

XP
Plug in your webcam or headset or mic you wish to use with your webcam
Control Panel (Classic View)
Open 'Sounds and Audio Devices' folder and click on the 'Volume' tab - make sure the speakers are not muted, open 'Speaker volume' and set the sliders toward the upper end.
Open 'Audio' tab - make your preferred mic the default device in the 'Sound recording window'
Open 'Volume' below the window to ensure the mic is not muted
Click 'Apply' and 'OK'
Restart your computer
Configure the webcam / mic to your chat program

VISTA
Plug in your webcam or headset or mic you wish to use with your webcam
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
Right click on the volume graph and select 'Show disabled devices' and 'Show disconnected devices'
To set your preferred mic as default - click the mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

Configure your webcam and mic to the Chat program

Run an audio check

XP
Plug in your webcam or headset or mic you wish to use with your webcam
Control Panel (Classic View)
Open 'Sounds and Audio Devices' folder and click on the 'Volume' tab - make sure the speakers are not muted, open 'Speaker volume' and set the sliders toward the upper end.
Open 'Audio' tab - make your preferred mic the default device in the 'Sound recording window'
Open 'Volume' below the window to ensure the mic is not muted
Click 'Apply' and 'OK'
Restart your computer
Configure the webcam / mic to your chat program

VISTA
Plug in your webcam or headset or mic you wish to use with your webcam
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
Right click on the volume graph and select 'Show disabled devices' and 'Show disconnected devices'
To set your preferred mic as default - click the mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

Logitech QuickCam Communicate STX WebcamThis webcam does not have a built-in mic
To check
Plug in the webcam
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
All available mics on your computer will show here
The speaker icon ( checked as working) and volume level graph should be visible
Right click on a mic and check the box to show disabled mics
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

Have you made your webcam mic the default mic ?
Vista
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

Configure to chat program

The software for the mic comes as part of the Logitech bundle - you may have a laptop or another mic also installed
Try setting your webcam mic as default
Vista
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer and configure to the chat program

You do not say what your operating system or computer system is
Here is a basic set -up for laptop ( with mic ) and webcam ( with mic ) and Vista OS

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

Configure webcam to your chat program

If you have an earlier OS you may have to access your hardware from the Control Panel.

You may need a headset if 'feedback' is a problem
Check your webcam mic is set as default.
TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

Configure your mic/ webcam to the chat program of your choice

Its important to set your webcam mic as default (the one you want to use) especially if you have a laptop with a built in mic as well

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders (adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

connectionfirst

check the settings on your msn that the input is set to the mic and also on the sound in control panel that input is set to labte mic