Hi, I am using attachement_fu plugin with Rmagick image processor for uploading images. Even though I am able to upload images properly there is some problem with the thumbnails. Thumbs are created with same size as original image. Also the height and width of images are saved as null in database. Here is my model. has_attachment :storage => :file_system, :resize_to => '640x480', :thumbnails => { :thumb => '160x120', :tiny => '50>' }, :max_size => 5.megabytes, :content_type => :image, :processor => 'Rmagick'