This video explains my problem better than I can
About a third of the screen (closest to the home button) becomes unusable in the browser app when you have switched the screen orientation. I only noticed this happening after install dvorak keyboard but it seems unlikely this is the problem. Has anyone heard of this problem before?
Edit: I forgot to mention that it also changes where you click links. You can see this in the video, I try to press a link but it chooses a link several below where I have clicked. Closing the browser session and opening a new one sorts all of this out until you change orientation again.