Modifying mouse/touchpad sensitivity

Try Pointing Devices

sudo apt-get install gpointing-device-settings

It contains a nice GUI for changing touchpad settings like sensitivity, min/max speeds and palm detection.

I was having the same problem until I found this nifty program called configure-trackpoint. Download the file from sourceforge. Open a terminal and type in:

sudo apt-get install sysfsutils

Then go back to the file you downloaded and install it. After installing it, go to your terminal and type in:

sudo configure-trackpoint

a GUI should open up and you can use it to adjust your trackpoint settings.

Hope this helps!