I just replaced the filament in our Delta V Advantage and I am observing Box and Trap values that are jumping around all over the place. Is it still possible to use this filament and ignore the dancing Box and Trap readings or do I need to replace this filament with a new one? The signal from this one is quite strong (as opposed to another I tried before this one which was very weak!)! Any thoughts would be appreciated. -- Charlotte Lehmann Research Technician Bates College Department of Geology 206A Carnegie Science Building 44 Campus Avenue Lewiston, ME 04240 Phone: 207-786-6485 FAX: 207-786-8334