Rob, I just hit a new compiler bug! Error in function c::barf. DEST #<Continuation c1> of deleted continuation #<set #x62CB755 var= #<c::lambda-var #x62CAF25 name= state type= #<union-type (or null state)>> value= nil> is not DELETE-P. Compile the file /afs/cs/user/wlott/src/noise/broken-regexp.lisp to reproduce it. -William