netbeans does not refresh the css

Hello There:
i didn't know where to put this topic, but I'm using jsp in this application so here i go:

When I'm editing the css file in netbeans 6.7 , make deploy of the application and then launch it to the browser, the changes that i made in the css file are not there. (I used firebug to see the page but there are no changes in the css (as expected).)
But when i edited some jsp (some.jsp) page and then deploy it, the changes appear immediately.

By the way I'm using Tomcat 6.0.9

I hope you can help me.

------------------------------------- UPDATE --------

ok, i solved it..... the link to the css was pointing to an external server, so... even if i was changing the code of the local css, it wouldn't have displayed the changes if i don't change the external file.