An ad pops up on every page which blocks part of my view. Only on DU.

[Make7]

6. What is being blocked? As far as I can tell there are only four Ad spaces.

(This description is for the desktop view, not the mobile view.)

There is a banner Ad below the top navigation tabs (Home, Latest Threads, Greatest Threads, etc.), a vertical Ad below the forum list/links on the left side (Announcements, Latest Breaking News, etc.), and when viewing threads there is a square Ad in the upper right of the opening post plus a block of Ads right below the opening post.

None of them should cover up any part of the DU content. I have seen the left vertical Ad be weird when changing how the left side forum list is expanded and/or collapsed. If that is where the problem is, try toggling some Topics or Places to expand or collapse them to see if it relegates the Ads back to their designated area. Does it seem to happen for a particular Ad or Ads?

Perhaps you could take a screen capture and post it so others can see what you are seeing. Or at least describe it in more detail - including what browser/OS your using and what exactly is getting blocked. Is it the same on each page or does the problem change locations?