Currently downloading the new patch, and after the optimisation took around 4 hours (despite it saying it'll only take 15mins), the downloader for 4.3.0.15050 has started. The setup download took fairly quick to download, however it's slowed down to a stop at the end of the red setup stage.

Now whenever I try to click on any of the menu buttons (or in fact anywhere on the downloader), it ends up flicking between Not Responding and Running on the Task Manager. I've tried restarting the download and now even the PC several times, and it still produces the same result.

Any help at all please?