I ended up using an array instead of a string list...that way I could add a number of mobs in one command, instead of having to loop to add a keyword to a string list multiple times. So, problem fixed ...
I had written a beautiful, loop-dependent set of triggers in 6.16. It seems now that they will not work in 6.40 :( When a #LOOP command is used in a trigger now, the MUD seems to ignore the next sever ...