Multitouch trackpad / touchpad How to enable scrolling with two fingers?

Hi.

I recently bought a Macbook Air clone (link: http://www.aliexpress.com/item/New-A...077014547.html).

It does work really well and I really like it, except for one thing. I haven't been able to enable scroll with two fingers.

The touchpad is recognized as a "ImPS/2 Generic Wheel Mouse". I have searched a bit around the net and I found a couple of guides to enable two finger scroll, but I have had little success. Maybe someone could help me a bit more?

I remember I had an older Asus A6M computer. It did not have the capability of multitouch, but yet in one Ubuntu edition I could still enable and use this function. I guess it was some kind of emulation. When I place two fingers on my touchpad now the mouse is standing still, when I only have one finger it runs normally. Somehow it seems to be detecting the two fingers, but not scrolling.

I am running Ubuntu Gnome 13.10 with the computer mentioned above.

Hope someone can help me out here.
Thank you very much in advance.

Best regards
Rune Gangstø