title: Magento not rebuilding product thumbnail cache?
body: <p>Alright, so I implemented an adaptiveResize module (https://github.com/wearefarm/magento-adaptive-resize).  I think I have it installed correctly.  </p>
  
  <p>I am actually using large "thumbnails" as product images on my site because it seemed the easiest way to get multiple images per product.  So altering in product images I am altering the thumbnails.</p>
  
  <p>Okay, so I go to app/design/frontend/base/default/template/catalog/product/view/media.phtml and change the thumbnail's resize function to adaptiveResize.  But now all those images are loading as the default Magento placeholder.  Boo.  Changing back to regular resize fixes the problem.</p>
  
  <p>I renamed media/catalog/product/cache to force the site to create a new cache folder.  It has done so, but inside its created an image and small_image folder, but no thumbnail folder.</p>
  
  <p>My .htaccess file has memory limit set to 512M.  I don't seem to have a php.ini file (or I don't know where it is...) but there is a php.ini.sample, which also has memory set to 512M.</p>
  
  <p>Any ideas?  Are the photos just too large?</p>
  
  <p>site is at cart.oldfloridian.com.  Category images also are acting up after implementing this module (http://learntipsandtricks.com/blog/magento/121/How-to-resize-Magento-e-Commerce-category-images) - perhaps the same cache issue?</p>