Q: How can I change the password of a WebDAV calendar subscription in iCal?

I have 2 WebDAV calendars shown in my iCal, and my password on the WebDAV server has been changed.

Even though iCal noticed the change and asks for the new password, when I enter it, it is still sending the old one. (I checked it on the server in the logs.)

Thanks in advance,

Mate