Don't use multiple question marks, its rude. It makes it seem like you are demanding answers. The strange capitalization is off putting also. Just type your post like you were writing a paper for school.
Anyway, it is not normal to have that blank section in eBay. I use eBay myself and I don't have that issue. I would visit the site with extensions disabled and see if the problem goes away. If it does, you know its an extension causing it and not Opera.