Dear Customer, The enclosed Support Level Supplement(SLS), xnx116, corrects problems with the mapkey program used in the SCO XENIX 386 Operating System Release 2.3.0 and 2.3.1. The SLS may be installed using the command etc/install. In order to do so, the Link Kit must be installed. If the Link Kit is not installed on your system, or if you are not sure, refer to the section on custom(C) in your SCO XENIX System V Operating System User's Reference Manual. To install the fix, it is necessary to go to single user mode. Login as root and run the commands: cd / etc/intstall type y at the prompt for the first floppy. type y to continue with the installation type n at the prompt for the second floppy. Yours sincerely, Technical Support Department ref: xnx116