First, welcome to the forum
Brent [righton]
The only way this is possible (to my knowledge) is by setting individual points, without creating lines (deselecting a point by clicking outside point using vector selection tool).
- what photoshop version do you have?
- are you doing a specific tutorial?
- did you try resetting you preference file?
Btw, are you sure that these are anchor points that are stroked and not that you're seeing dots that were drawn because of a high brush spacing value? (see attachment)
Sorry, if it sounds stupid for me to ask, but I have to make sure that this is not the case