I still have to crank out .Net 2.0 solutions and dragging items from the toolbar in Visual Studio 2010 does this to me and I can't figure out why. I just click on a control, or double-click it to add to the form I'm working on and it assumes I'm going to be dropping the same control on the form multiple times. I can't turn it off or get it to stop. Is this a bug? (notice the cursor - hitting escape doesn't turn it off or revert to a selection arrow either). Strange.