Line spacing - anyone help?

As the title surjests, a soft return when typing in text seems to make a huge line space? I have paested-in copy to get a good line space, yet if I want to use  a soft return to move a line down, I get the wrong line space.

 Anyone know if there is a special command for a normal line space?

This is happening on all pages for me.
Am thinking I will have to make pictures of the whole page area and include the text that way. 

I’d never spotted that Jeremy! Thankyou!

.........TOny

The single line spacing feature doesn’t seem to be working properly in the 13×11 book format, even with the line-spacing button.  Instead of the single spacing staying consistent whether the lines are generated by natural word wrap or by a carriage return/enter, lines produced by a return are somewhere between a single space and a 1.5 space—and grabbing them all and selecting the single space button doesn’t change it.  I have used this feature extensively in other books, so know it can work but it is not working for me in this 13×11 book.  Any tips or is there a bug fix needed?  (I’m using the 1.9.5.23254 rev).

I forgot to say that I am working in the 8×10 portrait format.

My problem is solved. I had first a problem of indents in the middle of a sentence.
Craig from Tech help solved that for me. I had to go back to word and select the text.Then go to to Format>Styles and Formating > Clear Formating (on right of page.)  Then I pasted that text into my book. Still the line spacing wouldn’t correct. So I tried selecting the line and several above and below, and changed the font size smaller . Then I reselected the lines and changed them back to the size I needed.  I could tell that the curser was larger than the letters in the row and that was causing the bigger linespacing. It all went back to normal after changing the font size.