Issue: After the DualBoard is calibrated, the pen is still out of sync by 1 to 3 inches.
Resolution: WorkSpace may be running in Whiteboard Mode. Whiteboard Mode is designed to work with Expo markers that have top sensors which allow WorkSpace to record whatever is drawn on the board and not intended for use with a projector. While in Whiteboard Mode, the calibration appears to be off by several inches if you use the regular DualBoard pens. To resolve the issue, simply restart WorkSpace using the WorkSpace icon (NOT the Whiteboard Mode icon) from the DualBoard Features Menu.