Before I ask my question, I have to say that I'm a newbie when it comes to Lyx, and I know *nothing* about LaTeX and TeX (a type of condom and a guy from TeXaS, right?).
That being said, I started using LyX recently and I love it, but I have this annoying little problem that's turned into a quest mostly because I can't do it. I am unable to change the margins in any of my documents. I've gone to the document layout screen, and I can check 'Use Geometry Package', but as soon as I put a number into any of the fields (like Top Margin), the OK and Apply buttons are greyed out. Based on my research, I have the geometry package installed (I found geometry.cfg and geometry.sty on my drive). I looked through the archives for this mailing list and found several references to the line '\use_geometry 1', but I get errors when I put that line into my Latex preamble, and I'm not sure where else I can put it. Can anyone point me in the right direction or suggest some relevant reading material? Thanks in advance...