Warning during Full Crawl in SharePoint 2010

I get no errors but a warning during full crawl. User Properties are being crawled and linked to Managed Metadata. But I cannot search information such as text typed in MS Word 2010 document.

Here is the warning message,

"The filtering process could not load the item. This is possibly caused by
an unrecognized item format or item corruption. ( The filtering process could
not load the item. This is possibly caused by an unrecognized item format or
item corruption. 0x40d30 )The filtering process could not load the item. This is possibly caused by
an unrecognized item format or item corruption. ( The filtering process could
not load the item. This is possibly caused by an unrecognized item format or
item corruption. 0x40d30 ):

Any tips will help. Thanks a lot.

Mayank