The calendar tool remains problematic for some Vista users. It's not causing problems for everyone, so we don't want to turn it off at a high level. However, some of you may want to turn it off for yourselves both within the course and on your MyCCCOnline page.
Directions for the latter are now on the Vista FAQ in the Faculty wiki at http://www.facultywiki.ccconline.org/~www66/index.php?title=Removing_the_Calendar_Channel_From_Your_CCCOnline_Login_Page
(That is a very long link, so you may have to cut and paste or go directly to the wiki at www.facultywiki.ccconline.org, click on WebCT Vista in the upper section of the page, then on Calendar tool. IT's the last link under Calendar.
The fixes to the calendar tool are currently targetted for an update to Vista in the future, so nothing soon. We are as yet unsure why there are problems for some and not for others, so are also still working on that.