OCR: command key sequenceKi as all menus are inactive with backgrounding turned off Pressing K will allow backgrounding to resume recheck the menu item to indicate this, and, if the Progress Bar is visible the Cancel button will reappear (see below) The reason that there is no command key combination to turn backgrounding off is that doing so inadvertently can lock up the processor for extended periods of time until the render operation has completed Also note that because of the possibility of locking up the cpu for significant amounts of time this parameter not saved to the parameter file n addition, whenever parameter file is opened Allow Backgrounding is automatically enabled Auto Rendeb) When this option is checked, any changes made with the Subdivides menu or the Appearances menu will aut ...