Just remember, Open GL is not really neccesary to veiw transparencies. The current preview modes can be upgraded without Open GL to show transparencies. All computer games don't run on Open GL, and they can still support transparency. Open GL is only one formatt of rendering, there are many others that are not hardware dependant. If anyone here has Vue you will know what a problem hardware dependent Open GL can cause. You need specific hardware for it to work, whereas Poser's preview mode at the moment will work on any machine.