When using a touch pad to enroll your BioSig-ID password you will use one hand to hold down the corner (left button) while using a finger on the other hand to draw each character. 

It is important that you keep the corner of the touch pad held down for the entire stroke.  If you let up on the corner (left button) it will create an additional stroke and expect to you draw it with the extra stroke each time. Be sure that your "drawing" finger maintains contact with the Touch pad throughout the entire stroke as well.

If this does not solve the problem you may submit a support ticket for additional assistance.