XP makes a song and dance about this. Go to Control Panel>Date, time,language and regional options>add language. For some reason the O/S insists on adding the keyboard automatically, but if your happy with what you have at least it allows you to delete that separately.
Since I installed Windows xp, I have had a problem with everything coming up in a different language. Even emails are getting changed. What have i done, or what do i need to undo to get everything to go back to english. I have tried allot of things, but nothing works.