Woo-woo! Thanks, S_J, the new upload done did it.
Looking at the download you just put up, I can tell something was seriously munged with the old 1.7 download, 'cause that one was only 15KB compared to the new one's 430+KB. Bit of a difference, that.
As for what I don't like about the new movement system in 2.x, it just doesn't really fit in with my conception of what a space opera should be like. For me, it also seems to make the early stages of the game go too slowly--colonizers & pop. transports doing about 1mp/turn can take an unbearably long time to reach planets just one jump away from the homeworld. That translates into no outlying resupply facilities for my exploration ships, which slows down my initial planet-grabbing. Of course, all the AIs have the same problem, but the 2.x mod just doesn't fit well with my playing style.