When using two or more fingers, ensure that you position your fingers slightly apart.
Some gestures are not available if the last action was done from the TrackPoint pointing device.
Some gestures are only available when you are using certain apps.
If the Trackpad surface is stained with oil, turn off the computer first. Then, gently wipe the Trackpad surface with a soft and lint-free cloth moistened with lukewarm water or computer cleaner.
For more gestures, see the help information of the pointing device.