Reply to Dovefromabove: thanks for the tip about the video - I'll get on to that today.
Reply to sotongeoff: I've just tested both the image upload and 'My setttings' page and experienced the same problems, so have referred them to the technical team to fix as soon as possible. Apologies. And, yes, we did unfortunately experience some down time on the site last week, which was server related. The problem was fixed, so hopefully you're finding that the page loading times have returned to normal.
Daniel