Hi,
I have a Toshiba Portege M300 laptop, I think while removing some programs I removed the audio drivers. Now there is no sound and in the device manager I get 'Multimedia Audio Controller' not installed.

Have tried many audio drivers but nothing worked. Here is the Summary from Everest:


Version EVEREST v2.20.405
Homepage http://www.lavalys.com/
Report Type Quick Report
Computer Generator
Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP Retail)
Date 2008-10-12
Time 18:41


--------[ Summary ]-----------------------------------------------------------------------------------------------------

Computer:
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 2
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name SANDHIR
User Name abhishek_sandhir

Motherboard:
CPU Type Mobile Intel Pentium M ULV 753, 1200 MHz (12 x 100)
Motherboard Name TOSHIBA PORTEGE M300
Motherboard Chipset Intel Montara-GM+ i855GME
System Memory 496 MB (PC2700 DDR SDRAM)
BIOS Type Toshiba (01/31/06)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter Intel(R) 82852/82855 GM/GME Graphics Controller (64 MB)
Video Adapter Intel(R) 82852/82855 GM/GME Graphics Controller (64 MB)
3D Accelerator Intel Extreme Graphics 2
Monitor Toshiba Internal 1024x768 Panel (0003)
Monitor Toshiba Internal 1024x768 Panel (0003)

Multimedia:
Audio Adapter Intel 82801DBM ICH4-M - AC'97 Audio Controller

Storage:
IDE Controller Intel(R) 82801DBM Ultra ATA Storage Controller - 24CA
Disk Drive HTS541060G9AT00 (60 GB, 5400 RPM, Ultra-ATA/100)
Optical Drive MATSHITA UJDA765 DVD/CDRW
SMART Hard Disks Status OK

Partitions:
C: (NTFS) 20481 MB (266 MB free)
D: (NTFS) 34396 MB (2328 MB free)
Total Size 54877 MB (2594 MB free)

Input:
Keyboard Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse Synaptics PS/2 Port Pointing Device

Network:
Network Adapter Check Point Virtual Network Adapter For SecureClient - SecuRemote Miniport
Network Adapter Intel(R) PRO/100 VE Network Connection
Network Adapter Intel(R) PRO/Wireless 2200BG Network Connection (192.168.1.64)
Modem TOSHIBA Software Modem

Peripherals:
Printer \\englonfps08.ad.infosys.com\North_B&W
Printer Microsoft Office Document Image Writer
USB1 Controller Intel 82801DBM ICH4-M - USB Controller [B-1]
USB1 Controller Intel 82801DBM ICH4-M - USB Controller [B-1]
USB1 Controller Intel 82801DBM ICH4-M - USB Controller [B-1]
USB2 Controller Intel 82801DBM ICH4-M - Enhanced USB2 Controller [B-1]
Battery Microsoft AC Adapter
Battery Microsoft ACPI-Compliant Control Method Battery

[b]Support Information:
Device Type: Sound Card
Manufacturer: Intel
Model: Not sure
Interface: PCI / ISA
Operating System: Windows XP Home
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=496&qa5=19&qa7=1500&dp=2&qm0=Not+sure&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Intel+Sound+Card++Not+sure+Windows+XP+Home+) | Research manufacturer Intel (http://members.driverguide.com/index.php?action=getinfo&companyid=496)

finally got the drivers...had been searching for a while...this is where I got them. And guess what they worked!!! yippeee!

http://driverscollection.com/?H=Portege%20M300&By=Toshiba&dpage=4

So after downloading the sound driver and installing it, did you find out that it's not an Intel 82801 chip at all but a Sigmatel sound chip instead?

Everest lied to ya!