HI bruce4444,
Presspull can be pretty picky sometimes! If it can't find a clean, closed boundary it just won't pick anything at all. Instead of hoping that it can detect a boundary you can try creating a polyline boundary first and then selecting the boundary.
Trying to minimize the number of entities on the screen can also help. Try freezing items that are not necessary and zooming in tight to the whole are that you want to work on.
Please hit the Accept as Solution button if my post fully solves your issue or answers your question.
John Vellek
Join the Autodesk Customer Council - Interact with developers, provide feedback on current and future software releases, and beta test the latest software!
Autodesk Knowledge Network | Autodesk Account | Product Feedback