When I use PI Processbook ,I want to set a symbol to multi-state symbol,then I search a point and add it to Multi-state symbol. But the values and color bar are always grey,I can't set the state's number limit. After I press the OK button, it shows me the Connection Warning box, means Unable to locate the Point .. When I change some other points, it work well. I have check all the attitudes between the two points, I can't see any difference. Please help me,thanks a lot !!!