WampServer

I just installed the wamp server on my computer and am trying to use it will Joomla!
When I try to run MySQL I get this error:

Could no execute menu item (internal error)
[Exception] Could not preform service action:
An instance of the service already running

Any help with this problem would be great.

Change either the port that the client listen's to or the port that the server is on, I changed both of mine just incase, I did client on port 3366 and server on 3386 and that worked fine.