By "LV" I meant "LabVIEW". No you don't need to uninstall LabVIEW. This is what you can do: 1. Insert the LabVIEW installation CD. 2. go to you computer's "Control panel>>Add/Remove Programs". 3. Select LabVIEW and choose "repair".
This should put the dir.mnu back to your "instr.lib" folder. Hope this fix it.
