In addition to the general trouble with IE 8, it seems I have intermittent trouble on other windows based browsers, namely Firefox 3 (though Safari for Windows has been reported to have trouble).
The general procedure to reproduce this is to log in to Tracks as the admin user, add several users and browse around the /users view in FF3 on windows. You will eventually get the text output of the page you have requested.
This sounds like the same situation:
http://www.nabble.com/mod_rails:-Strange,-strange-problem-to16848077.html#a18874173
Tracks is running in Phusion Passenger.
Austin
