I have an older laptop, a Benq R56, good specs when new and much faster since I upgraded to Windows 8. The onIy issue I've had is the touchpad is overly sensitive and the cursor jumps all over the place, so is often worse than useless, forcing me to use
the arrow keys etc. I can't get an updated driver from the laptop manufacturer as they've stopped producing laptops so no new drivers for Windows 8.
However yesterday I downloaded a Windows 8 driver from Synaptics and it works perfectly now. Very happy!
Here's the address: http://www.synaptics.com/resources/drivers
After it downloads just double click on it, follow the prompts and it will install, then reboot.