Is this the method that you have used to make an active plot?
http://digital.ni.com/public.nsf/websearch/8C2071579CF38F0686256BE9005EE0B2?OpenDocument
Try disabling the individual annotations, as seen in the shipping example "Programmatically Annotate a Graph.vi." In LabVIEW, go to Help>>Find Examples. When example finder pops up, go to Fundamentals>>Graphs and Charts>>Programmatically Annotate a Graph.