Try these things for sound and turning off touch pad

Getting great sound quality and good bass out of these machines is possible and easy, as I discovered recently. This would be for when you're hooking up to a stereo system, or using headphones.

This works well: -
Open the Realtek sound configuration app, might be lurking in the system tray.
Goto 'Speaker configuration' and set it to
4CH speaker.
Goto 'Sound Effect' and set a curve with plenty of Bass emphasis.
Instead of the 'Head phone' socket,
plug your stereo into the 'Rear Speaker' out . It's at the other end of the row closest to the IEEE 1394 socket on the left side of your lappy. It's also the 'line out', but setting 4CH speakers makes it become the rear speaker out.
Set your stereo controls for some Bass emphasis too.

Hopefully (like me) at this point you are now hearing some deep rich bass coming out from you stereo speakers. Also, if you have a 'loudness' control on your stereo, use this too if you're like me and like lot's of bass!
You will get sound coming out of your laptop speakers too, but I usually have my stereo set louder and don't really hear them.

I thought it was kinda crappy to have such bad sound coming out of these rather expensive laptops. Turns out they do have good sound output, you just have to set it up right.
Touch pad - turn it off/on (toggle) with Fn+F10
Re. Graphics Drivers - might not be an issue for you, but I updated from the NVIDIA site to the latest 84.xx, and then my machine would not boot properly into XP Pro when running on batteries, fine on AC. If this happens to you, use the drivers posted on the Sager downloads. Apparently it's some problem with a .inf file that is tweaked for running with Sagers, 9750 anyway.
Also, updating to the latest AMD CPU drivers (some other utils available too) direct from AMD CPU website really helped out with the overall performance of my machine. Also seems to run longer on batteries now too.