Greetings, I've upgraded TBNL and SBCL and have faced a problem. This is how I load TBNL: (asdf:operate 'asdf:load-op 'tbnl) (asdf:oos 'asdf:load-op :tbnl-test) (tbnl:start-tbnl) Error while trying to start listener on port 3000 Can't create a new thread I don't even get dropped in the debugger. I'm using SBCL 0.9.0.19 under Linux 2.4.27. *FEATURES*: (:ASDF :SB-FUTEX :SB-THREAD :ANSI-CL :COMMON-LISP :SBCL :UNIX :SB-DOC :SB-TEST :SB-PACKAGE-LOCKS :SB-UNICODE :IEEE-FLOATING-POINT :X86 :ELF :LINUX :GENCGC :STACK-GROWS-DOWNWARD-NOT-UPWARD :C-STACK-IS-CONTROL-STACK :STACK-ALLOCATABLE-CLOSURES :LINKAGE-TABLE :OS-PROVIDES-DLOPEN :OS-PROVIDES-DLADDR) May that be the problem that SBCL doesn't support threading under 2.4.x, however *FEATURES* does contain :SB-THREAD? Thanks for you help. -- '(Yours parenthetically), peter barabas. ((call/cc call/cc) (call/cc call/cc))