lvlibs. And what I had done was remove them from the directory where they had been, thinking I could run the vi's from the folder structure in which they actually resided. However, it seems that once you've linked them from within a lvlib, they continue to be associated with the lvlib namespace. Now that I understand this, I know how to deal with it, and even though it's not exactly intuitive, I can live with it because the old way of a huge honking global namespace was a real disaster waiting to happen. Trouble is, it reverts to the unpredictable (by me) global namespace if you click through the warning messages. I wish this were better explained in the help system, and if it is I wish it were easier to find!
Thanks
LV 8.6 on Windoze XP