I've got a few of these in my .htaccess file RewriteRule ^buy-(.*)_(.*)_com.html$ http://www.amazon.com/exec/obidos/ASIN/$2/xxx/ [R,L] Code (markup): This works fine in Apache 1.3 or 2.0, but when upgrading to 2.2 it produces an internal server error. Does anyone know how to correct this code to make it compatible with apache 2.2? Thanks