Authentication and Debugging not working -- since Saturday, July 12

Hi everyone,
Since Saturday (July 12), the iTunes U launcher that my institution uses (a Moodle block) has ceased successfully authenticating users. From all the looking I've done, nothing has changed from our side, although I am having to do the investigation remotely, and can only be about 95% certain of that so far.
I'm also not able to use the debug string to see what credentials are being sent to iTunes U, because there appears to be no difference in the launcher process, whether debugging is enabled or not.
Is anyone aware of any changes or glitches in the system in the last few days? Any information at all will be very greatly appreciated.
-JR

Woolamaloo lives to help with such problems. Woolamaloo is an application specifically designed to access your iTunes U site without any CGI, BlackBoard or Moodle building blocks, etc. It accesses your site directly ... using any credential you supply. In effect, you can use it to "be" any user at your site. It can even show you Apple's debug webpage (if you want to see it). You can use Woolamaloo to verify that your site is not working ... or that it is and you have a local problem. You can find out and download the app here:
http://itunes.uic.edu/Woolamaloo.html
It comes in both a Windows and Mac OS version (though I admit to having a Mac OS X bias).

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