Bad .dat file (Ul'dah - the part with the Grand Company)

This is a fresh install on a new machine, but I seem to have a bad file for the part of Ul'dah with the Grand Company (forget which is Nald and which is Thal).

Last night, I tried to teleport into Ul'dah, and my game crashed after trying to load the zone. Unexpected error (2) (17). Tried to log back in, got the same error.

Today, I was still unable to log into the character, but was able to log in on a second character. Tried to enter Ul'dah again, and crashed once more. Seems pretty obvious there's an issue with that specific file.

Is there a way for either:

1) a dev to send me a "clean" file of the zone, with instructions on which to put it in...

or

2) a way to run a file check that will catch the bad file and replace it with a good one?

I'd like to avoid doing a complete reinstall if at all possible.