Getting this in new WinXPSP3 installation of Yahoo!Zimbra:

Both Yahoo Calendar and GMail Calendars have been updated.

com.zimbra.common.service.ServiceException: parse error: Caught ParseException parsing calendar: net.fortuna.ical4j.data.ParserException: Expected [-3], read [-1] at line 1

ExceptionId:btpool0-8:1238201707749:10c82b04fe7e8f16
Code:service.PARSE_ERROR
at com.zimbra.common.service.ServiceException.PARSE_E RROR(ServiceException.java:271)
at com.zimbra.cs.mailbox.calendar.ZCalendar$ZCalendar Builder.parse(ZCalendar.java:1051)