If I have been scrolling through assets for too long or I scroll to quick the button "next" gets stuck, it turns transparent. When this happens I you have to sit and wait. Can you tell me if there is anything I can do so that this doesn't happen?
This usually means your browser is not responding ... they are not always at the same speed and can vary a bit or the site is busier than usual ... don't keep clicking on it because every time you do you are asking it to do something else, even if it's the same thing. The best thing to do is to 'wait it out' and it will come back ... or drop your window all together. Or maybe your flash needs updating .... that can stall out as well.
Clearing out your internet cache helps too. It can make the browser run slowly when you're viewing
a lot of graphics.