A/C Compressor is loud now.

[Broadwayblues]

Today my a/c compressor starting making a horrible clacking noise. It's so loud that people in the parking lot were looking at my car.(I am sure that it's not because it's so fine!<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'> The air seems to be cool enough, it's 95 and humid here. Just wondering what you guys might know about this. The belt is fine, I replaced them not too long ago. It's a loud, fast clacking/clicking noise. It's only making noise when the compressor is engaged, and when it's idlling. It might be making the noise when driving, but the engine noise might be drowning it out.
N E ideas would be greeat.