i use the svn revision 2134 on amd64 and gentoo linux. it hangs when i try to eneter the editor config dialog. it does not happen with the other config dialogs.
deleting the config file in my home direcotry helps, it's ok after a fresh start of c::b. however, after some work with a project (can't tell which operation exactly), it freezes again when i attempt to access the dialog.