I am working on a drawings with nested xrefs and am experiencing major delays when selecting objects using crossing windows. It is as if the computer thinks I am selelecting the xref even though the curser doesn't touch any visible exref entities. Basically, I click to start the window and the curser freezes for 10 to 20 seconds. I am experiencing the same problem with other commands (intermittenly) such as move, line, and offset. The exrefs are on a separate locked layer and have been moved to the back of the drawing. Does anyone have an explanation for this or a solution?
Are you absolutely sure it's the Xref's that are causing the lag? if not, try to unload all of them. If you don't have any more lag after that try reloading them one at a time to see if it's all xref's or just one of them. Or maybe it's just too many xref's and your computer can't handle them all.
Signature, sincerely... //Adam AutoCad LT 2014 Give Kudos where credit is due, Mark "accepted as solution" if the post solved your question.