how to keep scim work for ubuntu 9.10?

[yilin]

After upgraded from 9.04 to 9.05, I added a new user account to the system.
I found the following:

scim still working (after a reinstallation) for old accounts but it not working for new account.

in new account's terminal, I can use mouse right click to choose scim and then it'll work for terminal, but I cannot invoke scim for firefox, nautilus etc.

Then I found that I can use ibus although every time after login, I have to start ibus.

But ibus doesn't have a input method that I like, so I'd rather get back to scim.

Any one can help me configure my new account for using scim allwhere?

Thanks