If you are having response problems when running X11 apps such as ikeyman e.g.
Cannot load fonts for IMF.
Cannot create fontset.
Try changing your $LANG setting to C and then restart the application:
# export DISPLAY=192.168.1.66:0.0
# export LANG=C
If the problem persists and you are unable to correctly display your fonts try copying the TTF files to your local Windows font cache and restarting the application e.g.
To: C:\Program Files (x86)\Xming\fonts\TTF
Note: You may have to create the "fonts\TTF" directories and also require Administrator privileges/
I am also unsure of the legal status of copying the fonts so you may need to check with IBM?