It is hard to make scim work in English windows; sometimes, it does not work in certain programs (e.g. Openoffice 3).

To solve this problem, one can just install English Language package.

1. Install scim

2. add the following code to your ~/.profile file:

export XMODIFIERS=@im=SCIM
export XIM="scim"
export XINPUT="xim"
export XIM_PROGRAM="scim -d"
export GTK_IM_MODULE=scim