Reference problems


I hope somebody can help me. I've got a little problem with SolidWorks.

I was making an assembly of several parts, when I needed a drivetrain.
I took the same drive train a used in a different assembly.

First there was no problem but after a while I got an error whileopening my assembly
He coudent find the drive train. He keeps refering to the positionon my hard disc where te original drive train was located.

I deleted the drive train and before inserting it again I changedevery parts name.
But it keeps asking where the parts are located even with a newname.

I hope somebody understands.
mvg

mathys WSolidworksAssemblies