Kickstart 1.2 (buggiest thing I've ever seen Guru'ed me to give up and stuck to play games)
WOW! You must not have lived through Kickstart 1.0 and Kickstart 1.1! I remember beta testing Kickstart 1.2 and thinking how great it was compared to 1.0 and 1.1. To be honest, I thought it was the first truly stable version of the OS.
