Had problem installing beta-5 on my old XP box, so I uninstalled, nuked all leftover files except prefs.ini, and re-installed from saved downloads...
0.75 -> 0.915 -> 0.952 -> 0.981_C2
On the c2 update I got a funny error message that I didn't catch, but I also got an update-successful message under it. Event viewer had this to say "Faulting application install.exe, version 9.0.30729.1, faulting module install.exe, version 9.0.30729.1, fault address 0x0003f014."
Now, trying to play, I get a crash on next-turn ending turn 2.
crash zip https://dl.dropbox.com/u/8928343/FallenEnchantress0_981-2012-09-29T08-15-40-796.zip
debug.err https://dl.dropbox.com/u/8928343/debug-turn-2.err
If nothing comes up here, I'll try uninstalling / reinstalling again later this weekend.