[xmonad] Using xmonad with freenx

Hi I'm trying to run xmonad within a freenx session, but I get this error: Xlib: extension "XINERAMA" missing on display ":1000". xmonad-x86_64-linux: XMonad/Main.hsc:83:18-88: Irrefutable pattern failed for pattern (Data.Maybe.Just nbc_) when using this command as x init script for the nx session: exec ck-launch-session xmonad freenx does not support xinerama, but I won't be needing multiscreen support, can I work around this somehow? E.g. Can I run xmonad in a way that does not require xinerama? Thanks in advance -- Kind regards Tim Diels