There are a few places within that Manager where invalid data may be placed into IsolatedStorage, causing the Manager to crash each time this data is loaded. Since the Manager cannot load, the values cannot be corrected without manually wiping them clean.
-- SYMPTOMS --
- The openPDC Manager crashes immediately upon entering a monitoring screen, such as the home screen or the Graph Measurements screen.
- Error messages related to values which are out of range, such as, "Width and height cannot be negative."
-- WORKAROUND --
- Navigate to C:\Users\<openPDC Manager User>\AppData
- Search for 'IsolatedStorage'
- Delete IsolatedStorage
Where <openPDC Manager User> is the user who runs the openPDC Manager.