MS 2003 can figure out how to get this line out of text

Trifecta ™ valve (aortic) (St. Jude Medical)
what is it A stented tissue heart valve. Trifecta valve, a new stented tissue valve replacement for diseased
damaged or malfunctioning aortic heart valves

______________________________________ See this line, I cannot get it out ?????

I just cannot figure out how to get this line out of the text. I have tried to highlight and CUT. I have tried to use PERIODS , highlight and cut. Actually, cannot highlight the actual line, but tried cutting this symbol (the hard return symbol) Nothing works, any ideas