Hello. I use Knoppix 6.2 from an usb flash drive in my acer aspire 5739g laptop (which came preinstalled with Windows Vista Home Premium OS ). Everything is satisfactory till date ( i am new to Linux and so would need some time to feel at home), but the touchpad of my laptop does not seem to be completely compatible with Knoppix. I can move the cursor around but cannot tap to select or double tap to double click. The scroll-zone on the touch pad is also not working. Can anybody suggest me how to enable these touchpad actions while using Knoppix ?

If i change the wallpaper of the Knoppix desktop, then after rebooting(from usb flash drive) at a later time is it (the wallpaper) supposed to reset back to what it was in the first run ?