Earlier, I set the Visibility Radius on a doodad to a ridiculous amount. I believe it was 99,999. I did this to easily grab a doodad that i wanted to take out that was amongst many other doodads. Anyways, everything in my tab for world edit turned purple, except for the window borders. Also caused my computer to lock up. Whenever my computer tried rendering the map's visuals, it would crash my display driver, causing it to freeze. I don't know whether this was a issue with the model i changed the visibility radius for, or if it was something with my computer. Someone else could test this as well.