Comment #17 on issue 226 by coreyoconnor: XMonad.Prompt lockups with ghc 6.10 http://code.google.com/p/xmonad/issues/detail?id=226 Using CentOS 5.1 with GHC 6.10.1 x86_64. Same issue. Disabling optimization fixed this for me as well. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings