I think you have the menu bar enabled, the default is a menu button that has the Tab bar at the very top of the screen & the close minimize & restore down buttons integrated into the Tab bar in the top right hand corner.
click on file & Remove the tick next to Show Menu bar.
The top name bar is called the Title bar if you have changed the skin you may still see the Title bar a lot of of the older skins or ones that are designed for Windows XP always show it.
Either use the keyboard short-cut Shift+F12 to open the Appearance window & open a new tab & right click on the Speed-dial background & then click on Appearance from the context menu
under the Skin tab select the default or click on the Find more skins button, it only takes seconds to download & apply a skin & you do not have to restart the browser or anything.