Sony Vegas PRO 13 Dotted markers?

[Aaron Star]

You can right click on the marker and select delete.

You can also find the Edit Details window and filter for markers, then Control+ select and delete a whole lot at once.

If your default project has markers, you will get the markers back when a new project is created. Save a new default project the way you want it.

F1 is your friend.

[Jorma Nippala]

Did you turn snapping off? Try toggling F8.