HP Pavilion DV9925nr Mic Problem

I recently installed Windows 7 on my HP Pavilion 9925nr(HP Pavilion dv9925nr Entertainment Notebook PC*) and it seems like everything is flawless except the audio driver.

Sound works just fine, volume is good, even the quick volume control buttons work without me installing any drivers, however I encountered the following problems:

1. built in mic does no longer work, it doesn't appear in device manager nor in Recording Devices

2. I just realized that the quick mute button no longer colors orange when sound is muted, it remains blue


Audio driver used when I had vista 64:

TITLE: Conexant HD-Audio SmartAudio 221

VERSION: 4.31.1.0 Rev. A

DESCRIPTION:

Venice audio driver 32 & 64 bits combined (version : 4.26.0.0)

Hermosa audio driver 32 & 64 bits combined (version : 4.31.1.0)

PURPOSE: Routine Release

SOFTPAQ NUMBER: SP37816

EFFECTIVE DATE: November 9, 2007

CATEGORY: Audio

SSM SUPPORTED: Yes

ENHANCEMENTS:

Venice & Hermosa combine drivers

Venice audio driver 32 & 64 bits combined (version :4.26.0.0)

Hermosa audio driver 32 & 64 bits combined (4.31.1.0)

FIXES:

1. Hermosa and Venice combined driver.

2. Fixed Mute button LED will change Red from Blue quickly during s3/s4

I tried finding a newer version of this driver but I had no luck.