Touchpad input support needs bolstering.

Binary package hint: xserver-xorg-input-synaptics

This for Dapper 6.06 LTS.

Synaptics support is installed by default in Dapper now (a step up from Breezy), but has the following shortcomings:

1) SHMConfig is not turned on by default in xorg.conf, making it hard to adjust if you don't know about that particular little bit of Mystic Incantation<tm>

2) The tools for adjusting Synaptics support by default are CLI-oriented and not particularly user-friendly.

The following solutions could be used in the short term:

1) If a Synaptics touchpad is detected at all when configuring xorg, turn on SHMConfig right away.

2) For KDE desktops, ksynaptics should be a supported, automatically-loaded package.

3) For other desktops, qsynaptics should be a supported, automatically-loaded package.

(Ksynaptics and qsynaptics are pretty small packages.)

A longer-term solution would be to build in the functionality of k/qsynaptics into the System->Preferences->Mouse applet. Such a program should allow users to quickly and easily turn off Synaptics support (to prevent typing irritations) and should allow adjustments to the various facets of Synaptics support (scrolling, multi-finger taps, et al) as provided by the external programs. Ideally a hot-key to turn the support on and off, as per SCIM and input methods, would be perfection on a stick.