I am using Ubuntu 12.10, I changed some language settings (from 'English US' to 'Hindi' and then back to 'English US'), during which I think I did something wrong but could not remember what.
Now key repeat is not working, means if I want to type any letter multiple times then I have to hit that key multiple times i.e. if I want to scroll down in a document by 20 lines then I have to hit the 'scroll down' key 20 times, key repeat it is not working.
Can some body help me to figure out which setting I've changed and how to restore it and is there any way to restore all system/user settings to their default value?