Dell Precision

How to rectify the problem of Microphone in my Dell Precision M60 laptop?
The microphone in my Dell Laptop cannot detect any input signal.
Using the Wizard I tested the hardware but its of no use…
There’s no movement in the recording meter….
Even Reinstallation of the drivers didnt help me…..
What should I do?
Default settings for microphone in windows is set to mute so you have to right click the volume icon in the system tray>open volume control>options>properties>tic the microphone box>click OK. Now you will un-tic the microphone mute and do the wizard.
Mobile Masterpiece: The Dell Precision M6500