Originally Posted by
tedg
Just a shot in the dark,
Check in your Preferences (options) under 'Open and Save', in the External References category in the 'Demand Load Xrefs' area and see if you have"Enabled with copy" checked off. You should if everyone is supposed to be referencing and working on shared drawings and xrefs.
Also, make sure everyone else in the office does too. It allows everyone to load xrefs when someone else is in it. Also, if someone is just referencing the xref and they don't have "enabled with copy" checked off, it locks everyone else out.
I hope it helps.
Ted