Webform spam since October 6, 2012

July 5, 2012 we moved a Drupal web site from Romania to USA and hosted it on GoDaddy account. July through October 2012, running great, no changes to the php code or Drupal updates applied and only made a few blog post changes. Normal receipt of email each month from the webform was 5-6 pieces and no spam. But, since October 6, 2012, we now get 10-20 spam only emails DAILY. The captcha module is not stopping them either. I disabled the form mid-October just to keep it from bothering the boss, until time could be set aside to chase this down. Now, I'm back to investigate why the webform spam and how to stop it. Anyone got a suggestion?

See the form at the web site: http://www.phhlaw.com