I've been running Snow Leopard 10.6.8 for months. For some reason today I lost the ability to "regular" empty the trash. When I right-click the trash from the dock and select "Empty Trash" I'm presented with the "are you sure you want to secure empty the trash?" dialog. When I open the trash in Finder the button in the upper right corner says "secure empty trash". How can I regain the ability to regular empty the trash?