Answer by Dima for Hi,I am new to MAC and all the related stuff. Changed from MS Winxxx to Mac because they said it would be much user friendly. But now I have some problems. I am using Texshop. I tried to run Sagetex, but it does not work. I get the message "Latex error! File sagetex.sty not found". I copied the folder sagetex everywhere in my system. I cannot definitely say, where the latex installation folder is. Or how to get to the installation folder. I spent hours and hours following the advices I found on the web. Without success. I am using Lion with its latest update. Texshop has also its latest update. Same to Sage. When I run the example.tex from Sagetex folder, everything is fine. But when I run Example.tex from a folder located e.g. on my desktop then the error message appears. I know that the system cannot find the sagetex.sty. But why? I followed the instructions given under: http://www.sagemath.org/doc/installat...Any hint appreciated. Keep on rocking'Rick

The instructions are written with Linux in mind, which would normally run a de facto standard TeX implementation called [TeXLive](www.tug.org/texlive/) (or an older one, albeit quite similar, called teTeX). I didn't use TeXshop (which is IDE to run LaTeX) for many years; google tells me that actually it uses TeXLive, so you are all set in this sense. Sagetex is meant to be run at the shell prompt. If you do it at the shell prompt, then put sagetex.sty in your working directory (there are better ways, but this one should typically work, too), open the Terminal, and run `latex yourfile`. Then run Sage, as described [here](http://www.sagemath.org/doc/tutorial/sagetex.html). (needless to say, sagetex.sty is pretty much useless without Sage installed).