An invalid character was found in text content. Error processing resource

[kenny1989]

hi, i have recently recovered some of my message history that i had foolishly deleted and now when i try to open it it says:

The XML page cannot be displayed

Cannot view XML input using style sheet. Please correct the error and then click the Refresh button, or try again later. An invalid character was found in text content. Error processing resource 'file:///C:/Documents and Settings/Owner/Desktop/...

i can open every other message history apart from this one