Share your experience!
Of some reason I've got Korean Keybord in my Xperia X10...! I have no idea how it got there either 
All menues and similar are in english, as it should, but when typing in Notepad or writing SMS the Keyboard is in Korean...!
Anyone?
Bring up the keypad like you are typing a message > Press and hold your finger in the white box where text appears when typing > Input Method > Default > problem solved.
Great - It worked out absolutely fine! Thanks!!
No problem, glad to help 