Checking xref modification

[Barbod]

Hi,

Can some one tell me to determine whether the XRef which I am using in a drawing has been changed/edited by some one else. How can I check this has happened?
Any suggestions.

 

[Hussain]

Hi Barbod,
Verify that the variable XREFNOTIFY is set to either 1 or 2. With it set to 1, you'll see an icon notification on the status bar. If it is set to 0 it will be turned off. When there xrefs in a drawing the "Manage Xrefs" icon appears in the tray. If someone else edits an xref, this icon will display a balloon notification that the file has changed and prompts you to click the balloon to reload the xref.