ERRATA FOR THE PARALLEL PORT BREAKOUT BOX:

There was a bit of a mixup in the Parallel Port Breakout Box
(August 1995). The wrong SELECT line is monitored, and this can
easily be fixed by the following procedure:

Remove lines 13 and 17 of the ribbon cable from the board.
Move the wire link on the main board to the position shown below. 
Solder line 13 of the ribbon cable into the hole previously
occupied by the link, and solder line 17 of the ribbon cable to
the hole originally occupied by line 13.

Also, there is a misprint in the circuit diagram on page 71. The
ERROR line should be pin 15, not pin 13, as shown.