I am using Chromium 19.0 (ie., Chrome for Linux) though I also tried Opera 11.64. The OS is Sabayon 9 (Linux 64-bit). The html help pages appear blank apart from the frames and a little background window decoration. There are no navigation buttons, nor search fields, nor anything much really. The same happens for 8.0, 8.1 and 8.2. SOLUTION: I installed Mozilla Firefox 12.0 and the help pages display normally. RANT: It's a little annoying that I've had to install a new browser to get this feature to work. And also wasted time trying to figure out what the problem was. The pages should at least state that the browser may not be compatible - instead of being simply blank. Hopefully this forum post will help others with a similar problem.