"Doesn't work" is a vague statement.  Does it sit on the couch all day long?  Does it procrastinate doing the dishes?  Does it beg on the street for change?  Please be specific!  Define 'it' and what it isn't doing.  Give us more details so we can help you without needing to ask basic questions like "what's the error message?".  See smart questions and errors.
(With thanks to irc.debian.org)