Re: DRIVER NEEDED: Toshiba Intel 82801IB ICH9 - High Definition Audio Controller [A-3] PCI (Windows Vista) [PCI / ISA]
First you should visit the Toshiba website for the country you live in. Then go thru the support/drivers links to get to the drivers. One very important clue you omitted is the product "Family" name, eg: techra, satellite, satellite pro, portega, etc.
Once done, you should have no trouble finding the correct driver. Here are a few links for you to check.
And fy, there is no such sound chip as Intel 82801. Sound chips bear names like Realtek, Cmedia, ADI SoundMAX, VIA, and IDT (formerly Sigmatel). But of course you would have known this had you taken the time to READ some of the 82801 STICKIES near the top of this forum or any of the dozens upon dozens of threads identical to yours.