Henrick: After downloading/installing updates to the Application software to v2.61.00 and Device File v1.62.14 I tried to reprogram the chip. At least now the "All Protect" warning is gone and the Enable Protect menu selection in Tools are operable and unselected, indicating the protection bits were cleared. However chip will not program or erase and displays continuous "No device detected" message in yellow window.
Any other suggestions?