Shoutbox

I'd say the easy solution would be to log out again.

Alternatively, your browser most likely lets you choose which your preferred language is in which you would like to view websites. In Internet Explorer this can be set by going to Tools > Internet options and clicking the Languages button. In Firefox you can go to Tools > Options and click the Languages button on the General tab.

Also, perhaps you could change the language from Spanish to English in your account preferences.