I just installed the May 1st updates and restarted my MacBook (10.4.9). When it came on again a couple of icons were missing form the Dock, all my music had to be reloaded into iTunes from the Music folder, and, worst of all, all my iCal calendars were deleted. The only thing I'm really worried about is the Calendars, does anybody know a solution? So far nothing has been erased except the calendars, just moved around, may be the calendars are just moved as well, and if so, any idea where I can find them?
Thanks

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