Hi. I have a MS Excel 2007 spreadsheet that I have created several hyperlinks to various MS Word 2007 files. From time to time, and for no apparent reason, all of the hyperlinks become ?de-linked? and I get the error message ?Cannot open the specified file?. I then have to go and re-create the links and it will last for who knows how long. Can anyone tell me what is causing this and how to correct it?

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