Thanks for the suggestions and encouragement. Looks like I have some research to do. Norton (the company) no longer offers help with Windows 7 problems. This problem is likely to happen to everyone using NAV and Tk. I hope our dialog helps other to recognize it when it does.
Bill

In reply to Re^6: Tk::Canvas not working by BillKSmith
in thread Tk::Canvas not working by BillKSmith

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