Cursor moves with typing

MacBook pals:

Love the 2 pound MacBook. Best computer I have ever owned.

There is one annoying thing thought that I wish I could solve. When I have the trackpad set up to click with a single tap, and I am typing an email or something, inadvertent touching of the trackpad with my thumb or wrist moves the cursor, and I am now typing in some other remote spot in the document. Very annoying. I have to turn that feature off, and use the taptic touch of the track pad. I can do that, but I sure like the simple tap. Any way to solve this?