Comment 17 for bug 804372

After reinstalling Natty (botched attempt at moving to Oneiric Unity/Gnome3) I was reconfiguring my system. Whilst looking up the imps mouse fix I found a post on the Ubuntu forums which referred to a synaptic bug with a patched driver.

With the patched driver the touchpad indicator finally works (on my TimelineX 3820tg)!

Here's the bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/550625
Here's the link to the driver: http://people.canonical.com/~sforshee/alps-touchpad/psmouse-alps-0.9/psmouse-alps-dkms_0.9_all.deb

I hope it helps someone else :)