Take a look at the print dialog box under the
Printing section on this link...
http://www.uwec.edu/help/WinVA/print-bas.htmIt is for printing with Vista operating system, but is similar to WinXP and other OS'es as well..... On the left side, middle and toward the bottom you see a couple of places where you get the chance to tell the printer to print your "selected area" or "
selection"..... For those options to be available and not grayed out, you first have to be sure that you have
highlighted (or selected) those sentences, paragraphs, or portions of a file or web page so that they are bolded.... Then when you click on
File >> Print on the menu bar or click your printer icon on the Tool bar, the chance to be sure there is a tick in the bubble next to
selection on the mid-left part of the print dialog page or using the drop down arrow at the left bottom area of the page, use "
selection" from the
Print what option...
The key to having those "
selection" options available to you is having an area highlighted or selected on the document or page that you want to print.... I have on occasion highlighted an area, and during the course of moving my cursor up to the Printer icon or the File Menu>>Print Preview or Print choices have accidentally un-highlighted a choice or selection by inadvertantly bumping the mouse button or tapping the touch pad on the laptop while I was moving the cursor position.... When I am not given the chance to choose
selection, then I know what I mistakenly did and have to go back to the document and again highlight / select a portion to print.......

Hope this helps .... If no accidental un-selecting is being done or just a matter of not selecting a portion to print, come back and let us know and we can look further to some options.........