enabling touchpad scrolling on windows guest

[ohnoplus]

Version: 4.2.18 Guest additions are installed.
Host: Ubuntu 12.04 64 bit running on a Lenovo Ideapad Z580
Guest: Windows XP 64 bit

Dear List,
The Lenovo ideapad comes with an "intellegent touchpad". I am able to use two finger scrolling works fine on the host computer but not on the guest. I can scroll with a mouse with a scroll wheel on both host and guest. Is there some way I can enable two finger touch pad scrolling?
Thanks for any help.

[Perryg]

Version 4.3.2 has multi-touch tablet pointing device support.

Not sure how well it works as I have not tried it yet.

[ohnoplus]

I'll note also that checking Enable absolute pointing device helps, but scrolling still behaves strangely most of the time.

[ohnoplus]

Its a year later and I'm still having trouble with this. For the most part I use a mouse with a scroll wheel, but when I don't have a mose I'd like to be able to scroll somehow. Perhaps there is some way I could map keys to scrolling?