Do you Check in or Free a document?

HI all,

One of my users has recently lost some data in PW.

He created a MS word document and saved it on the 15th of December. On the 17th of December he opened this document but made no changes, but instead of checking the file back in he clicked on the free command.

Now all the information in this document has been lost.

OK now the interesting bit:

IS this an error and should not have happened?

Is there a way to restore the document back to its last save on the 15th of December?