If you are talking about that gap like line under an item in a right click menu, that happens in Windows 10 a lot and has nothing to do with Windowblinds, it has to do with Microsoft doing a poor job. Cannot tell here because your external link shows nothing.

here's what I'm talking about the taskbar is a jpg image hope the url works this time  if not here's the url  http://wigginshome.altervista.org/Cap.html

OK, I see the image now too, and as DaveBax has stated, I have no idea what would cause that. If you PM me with your email address though, I can send you something that will make those menus look like the ones in Windows 7. 

DaveBax the gsp only happens with the skin I'm working on