What was the one version or patch of OSX that just made you go, "WTF are you thinking Cupertino." Don't be bashful, we all have at least one that just makes us shake our head and run to buy the next upgrade or download the next patch. For me it was without a doubt 7.5. I ended up disliking it so much I got rid of my Quadra 660AV and bought a Gateway running Windoze 95. The OS just crashed like there was no tomorrow and got more fustrating then I could bear.