OK... Schleppy told me, I will pass it on to you now, if I can explain it correctly.

1. Click the lasso tool. Move it down to an open space.
2. Right click, so the Tool Options window pops up, UNLESS you already have it minimized in the background. (When you click on the lasso tool, the window will automatically change to cropping options.)
3. When you get the window open, there should be a drop down menu that says Selection Type and then move it down to Point to Point.