For logging errors, see CivilizationIV.ini, parameters LoggingEnabled (set to 1) and MessageLog (set to 1). I suggest leaving RandLog to 0 (generates lots of log - only set to 1 when someone knows it's needed). There may be other parameters as well that just aren't present in my ini-file.
I am sure you did it on purpose, didn't you? Confess! 
Our viral marketing campaign has been exposed. Quick! Suck out his braaaaaain!!!
What version of BUG were you running when it happened? If it's the version on the SVN then we can't release BUG 2.0 tonight.
