Hi Jskfan
To remove the line:
On the Home tab, click the arrow next to the Borders and Shading button, and click No Border.
If you still need the horizontal line use table Bottom Border.
If you insert this option, and want to type below this line, double click using your mouse.
Keyboard Down arrow will not more the cursor below this line.
if I want to write anything under that line, the cursor would not want to move under that line
After you draw your line you should hit "Enter". This will leave a hard return so you can get to the line below.
Paul