On Wed, 22 Dec 2010, Linards Ticmanis wrote:
On the German //e the cursor is simply a blinking checkerboard.
On my US-keyboard IIc, the checkerboard cursor is activated when you press ESC in BASIC so that you move your cursor anywhere on the screen without disturbing your programming. It allows you to correct your BASIC programming by selecting and unselecting ESC at the right times.