in word office, how do i get true single spacing (no distance between lines)?

it is odd, but all the text is close together. i am making headings that need to be three lines and when i enter them they come out (sometimes) with spacing. why would the body of the text be single while these won't work that way? i have tried everything i can think of including: single space option (their idea of single spacing is distance between lines of a single space), copy and paste from a page that does single space (hotmail), copy and paste into wordpad and note pad, copy and paste into word publisher, and others i can't think of just now.

does anybody know how to do this? i think it is weird that it only sometimes does this. the spacing can be anywhere from close together like i want it, to one space between, to 1 1/2. there doesn't seem to be any regularity to it. this is making me batty!!

thanks for your help.

keep reaching out.

~tk