When I use the "Circular edge (spoke)" function in Vision Assistant, the horizontal scroll bar flickers and a small icon appears on the toolbar; this icon is the one that normally appears when the circular edge detect function is invoked. However, the flickering stops, and the icon disappears, within a quarter of a second. Nothing else happens after that. The same phenomenon is experienced with Adv. Straight edge.
I've used both circular edge detecct and adv. straight edge yesterday night. What could possibly be the problem?
