Help!! Lost calendar data!

January 9, 2010 6:59am CST
Earlier today i went to check my calendar from my iPhone.It was screen locked and in my pocket.When i opened my calendar there was nNO RECENT DATA.I had just made entries earlier this morning and saved them, didn't delete and saw that they were there..........Now nothing! When i logged into my MobileMe webpage the data was gone from there too.. Is there any way to retrieve the data?? There were some items I REALLY NEED TO GET.
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