(crash/gameplay oddity) turn progression failure

the game stopped letting me progress in turns at turn 436, i can still look around, add and subtract things from Q's but when i hit the end turn button it does nothing...........so then i saved it, and quit and tried to reload and it froze loading (something i get often but failed to report)

file up to the point of turn progression failure

http://dl.dropbox.com/u/8822980/Elemental0_805-2010-07-06T21-09-22-83.zip

here is windows dump file from when game failed to load and i had to alt-ctrl-delete     (dunno if it helps you)

http://dl.dropbox.com/u/8822980/Elemental.DMP

*edit*    was able to get "previousautosave" to load but game stopped progressing at same turn