User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; WOW64; en-US; rv:1.9.3a5pre) Gecko/20100506 Minefield/3.7a5pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; WOW64; en-US; rv:1.9.3a5pre) Gecko/20100506 Minefield/3.7a5pre When the image at the URL attached is loaded the page scrolls very slowly and large part of the right hand side of the image is discolored - yellow in this case. Upon reloading the image it loads instantaneously (because it's cached I'm guessing) but Minefield becomes completely unresponsive. Reproducible: Always Steps to Reproduce: 1. With Direct2D enabled go to the attache URL 2. Wait for it to load and scroll to the right to see the yellow discoloration 3. Reload page to reproduce unresponsiveness Actual Results: Image is discolored and browser is slow/unresponsive Expected Results: Image should show up without yellow discoloration at least, and browser should not be unresponsive Doesn't happen with Direct2D disabled. Always reproducible. Wish I had another test case.