> cool, ill just downgrade to 81, any suggestions for cleanly removing 86?

I don't think you even need to remove 86. Lyx specfically looks for the file 
with .81 in the name. 

Err, now that i think of it, i don't recall a way to force the name of the 
library.  Anyay, i think just removing files with .86 in their names should do 
it.

rick