BlackboardMath Bugs If you use level 1 addition with mouse input, the program will lock up after four correct responses. This happens the FIRST time you play, only. To bypass the problem, play another level first or use keyboard input the first time. If you wish to place BlackboardMath on its own bootable disk you will need to: 1. Make a copy of your Workbench 1.2 disk 2. Delete enough files from this disk to make room for the BlackboardMath files(about 230K). I deleted the Demos directory, Utilities directory, Preferences, Clock, Say-SetMap-IconED-GraphicsDump-InitPrinter of the System Directory, ed and edit of the c directory. 3. copy "all" BlackboardMath files except BlackboardMath.arc to your new boot disk.