I was actually angling for another discussion of all the enterprise continuity-trampling.
Enterprise didn't do anything to continuity. just a bunch of anal star trek fans who insisted that an offhand remark in an episode be treated as strict history. it really does only conflict with a few remarks made here and there over 25 years. and enterprise even managed to tie up some continuity holes by showing how and why the klingons appearance changed.
Enterprise was a decent show.
how did they explain the Klingons appearance change?
Giant space bug.......... IN THE ASS!
Seriously, though, the Klingons were experimenting with duplicating the human program that created Richardo MontoKhan and his ilk. They injected the engineered human genes into some Klingons to make them super badass warriors. Instead, it mutated into a virus that did pump them up like the human variety; but it also killed them and mutated further into an airborne virus. A cure was found, but it made the human gene very dominate, leading to the loss of the head ridges until a better cure was found that restored them.
