Sound Problem with Toshiba Satellite A70! Please help!

Hi guys!

I recently formatted my friends Toshiba Satellite A70 notebook. I used Win XP Pro with Service Pack 2, everything was going fine, i installed the necessary drivers that were included (with the exception of the mobo drivers i'm pretty sure) to avoid unwanted extra notebook bullshit that everyone has starting out. Next I installed the audio drivers for I guess what would be onboard sound? It's Realtek AC'97 drivers. Once they didn't work I went on their website and got the latest release from them, installed those and still nothing.

Can anyone help me out with this? I DO remember hearing something about sound conflicts and Service Pack 2 with certain Mobo's, but I don't remember which one's, and I'm not entirely sure what kind of mobo would be in this. I know it's an Intel based notebook, not AMD, I don't know if that helps at all. If anyone can help me with this it would be great. Even if I have to rollback to Service Pack 1 or possibly get further Windows Updates, I've only updated once since I've formatted the computer/installed XP-pro.

Any help on this would be appreciated, thanks guys

Edit: I've recently uninstalled the Toshiba Realtek AC97 Drivers, then installed the BIOS Chipset drivers provided by Toshiba, reinstalled the Audio Drivers, and still have the same problem. I hope to christ I'm not going to have to reinstall all this **** again. Can someone please help me out with this?[#ff5500][/#ff5500]

Nope, no red or yellow flags in system devices. I think i MAY have installed the drivers in the wrong order. Possibly putting the chipset drivers on after i installed video drivers or other things. That might be it, but i'm not sure.

Yeah, I tried to do that, but i'm not sure which ones i am after reinstalling. I tried a system restore but it's giving me an "incomplete restore" so I'm not sure what to do now. I don't know if I should just re-format everything again...or dare i risk rolling back the Chipset drivers? The bios is flashed so...i dunno if i wanna do that.
That's probably the reason why I can't system restore because of the chipset drivers maybe?

If you reinstall the OS put them in this order (usually)
Chipset
VGA
Audio
Modem
LAN
Touchpad
PCMCIA & Cardreaders
Wireless