I tried doit 'SMSqueakMap bootStrap' from a Workspace in a fresh Squeak3.9b-7042 and it appears to be working correctly. And I notice that <http://bugs.impara.de/view.php?id=3706> has been changed to 'fixed' by MarcusDenker. Good work. VM 3.8.12beta4U.app on Mac G5 with OS X 10.4.6 Ken