Known issues:
Readonly no4 (July 1990)
Readonly no7 (October 1990)
Readonly no8 (November 1990)
Readonly no10 (January 1991)
Readonly no12 (April 1991)
Readonly no4 (July 1990)
Readonly no7 (October 1990)
Readonly no8 (November 1990)
Readonly no10 (January 1991)
Readonly no12 (April 1991)