[slime-devel] SLIME difficulty with SBCL 0.9.15 on OS X/Aquamacs 0.9.9d

Hi, all, I recently installed the latest CVS tarball, and when I try M-x slime, I see a lot of stuff in the *inferior-lisp* buffer that looks like it's setting things up normally. However, partway though, I see this: ;; Error while loading: /Users/mtp/.slime/fasl/2006-10-26/sbcl-0.9.15- darwin-ppc/swank.fasl ;; Condition: unknown &KEY argument: :WEAKNESS ;; Aborting. ; ; compilation unit aborted ; caught 1 fatal ERROR condition and it never finishes loading. Any idea what I'm doing wrong? Thanks, Matt