Google Adsense?

I guess I am cheating google adsense out of money... I have made $119.68 in 9 months... WTF??? Here is the email I was sent:

From: Google AdSense
To: boober86@gmail.com
Cc: Google AdSense
Date: Mar 30, 2006 8:37 AM
Subject: Google AdSense Account Status

Hello Andrew,

It has come to our attention that invalid clicks have been generated on
the Google ads on your site(s).

As a reminder, any method of generating invalid clicks is strictly
prohibited. Invalid clicks include but are not limited to any clicks
that are generated through the use of robots, automated clicking tools,
manual clicks by a publisher on the publisher's own web pages, or a
publisher encouraging others to click on his ads.

If you are clicking on the ads on your web pages for testing purposes,
please note that clicking on your own ads or encouraging others to do
so for any reason is prohibited, due to the potential for inflation of
advertiser costs. Please be assured that there is no need to test the
ads on your site, as our specialists review all of our ads to ensure
that they meet Google's advertising standards.

If you would like to visit the destination of an ad to view its content
or to add it to your filter list, you can use the AdSense Preview Tool,
available here:

https://www.google.com/adsense/previewtool?hl=en_US

The Google AdSense preview tool is an addition to the right-click menu
for Windows Internet Explorer 6.x, allowing you to preview the ads that
may show on any web page. Clicks and impressions from the preview tool
are not applied to the advertiser's account. You can click through to
the target site without worrying about invalid clicks being generated
on your account, and without costing the advertiser for your test
clicks.

If you have any questions, please feel free to reply to this email. We
will be happy to help in any way we can.

Sincerely,

The Google Team

Ok... I am not "paying" anyone to click on ads. If I seriously was "paying" for clicks, I would be making tens of thousands of dollars. I had one month that I made some good money; that is all. I have to send them an email and explain that I have done nothing. I am thinking it is an error on there end. No biggie. We will get the situation taken of today.

Andrew