- Oneline Diagrams: When MouseWheel scrolling up or down on a oneline to zoom, if the left mouse button was held down while wheeling, the zoom in and out would be performed multiple times. This was incorrect and has has been fixed so that the left mouse button does not effect this behavior.
- Oneline Diagrams: When using ALT+TAB to switch between programs and move away from PowerWorld Simulator, the "snap to grid" feature of PowerWorld's oneline diagrams would stop working. It would work again after the user pressed the ALT key down and released, but until then the snap to grid would not work. PowerWorld was registering the ALT key going down to temporarily disable the snap to grid, but because the ATL+TAB switched programs the ALT key coming back up was not being registered by PowerWorld. This has been fixed so that when returning back to PowerWorld the snap to grid would resume working.