calender month-view does not work

calender month-view does not work

Hi All,

I have just installed VO and I like to use the calender in month-view (year-view would suit me even better), but it does not work: it gives an error processing your request.
The week-view does work ok.

I have DL-ed and installed the servicepack, but then it stopped during the loading of the server. Because uninstalling the SP did not help I did a new install on a different PC (it just so happened) and there I had the same problem with the mont-view.

What can I do?
TIA for any answers

(BTW: wow spell-check, a lot of forums could Use that!) :D