When I first open iMPACT with no project or a new project and select "Cancel" at the Programming Options Dialog Box, iMPACT behaves as if I selected "OK" and programs the part. Why does this happen?
The iMPACT behavior has changed for 10.1. "Cancel" now applies only to the "Programming options" rather than the "Program" option, so the operation completes. The behavior has changed so that you can set the properties once per device in the chain in a specific project. The properties are set in a separate flow from the operations flow.