diff -u xmonad-contrib-0.10/XMonad/Layout/Decoration.hs\~ xmonad-contrib-0.10/XMonad/Layout/Decoration.hs
--- xmonad-contrib-0.10/XMonad/Layout/Decoration.hs~	2011-11-19 08:26:06.000000000 +0900
+++ xmonad-contrib-0.10/XMonad/Layout/Decoration.hs	2012-02-20 19:32:05.807316616 +0900
@@ -98,7 +98,7 @@
           , activeTextColor     = "#FFFFFF"
           , inactiveTextColor   = "#BFBFBF"
           , urgentTextColor     = "#FF0000"
-          , fontName            = "-misc-fixed-*-*-*-*-10-*-*-*-*-*-*-*"
+          , fontName            = "xft:Sans:size=10"
           , decoWidth           = 200
           , decoHeight          = 20
           , windowTitleAddons   = []
diff -up xmonad-contrib-0.10/XMonad/Layout/ShowWName.hs~ xmonad-contrib-0.10/XMonad/Layout/ShowWName.hs
--- xmonad-contrib-0.10/XMonad/Layout/ShowWName.hs~	2011-11-19 08:26:06.000000000 +0900
+++ xmonad-contrib-0.10/XMonad/Layout/ShowWName.hs	2012-02-21 18:50:48.586243032 +0900
@@ -62,7 +62,7 @@ data SWNConfig =
 
 defaultSWNConfig :: SWNConfig
 defaultSWNConfig =
-    SWNC { swn_font    = "-misc-fixed-*-*-*-*-20-*-*-*-*-*-*-*"
+    SWNC { swn_font    = "xft:Sans:size=20"
          , swn_bgcolor = "black"
          , swn_color   = "white"
          , swn_fade    = 1
diff -up xmonad-contrib-0.10/XMonad/Prompt.hs~ xmonad-contrib-0.10/XMonad/Prompt.hs
--- xmonad-contrib-0.10/XMonad/Prompt.hs~	2011-11-19 08:26:06.000000000 +0900
+++ xmonad-contrib-0.10/XMonad/Prompt.hs	2012-02-21 18:54:03.643078084 +0900
@@ -203,7 +203,7 @@ data XPPosition = Top
 amberXPConfig, defaultXPConfig, greenXPConfig :: XPConfig
 
 defaultXPConfig =
-    XPC { font              = "-misc-fixed-*-*-*-*-12-*-*-*-*-*-*-*"
+    XPC { font              = "xft:Monospace:size=12"
         , bgColor           = "grey22"
         , fgColor           = "grey80"
         , fgHLight          = "black"