LaTeX.org

Hi,
I am using Texmaker with texlive. My operating system is ubuntu.
When I click on view PDF or view DVI buttom at the top I get this message: "Error : could not start the command"
Does anybody have the same problem? Any idea about why it happens and how to fix it?
Thanks....

Hello I would like to use latex to draw flowcharts.
is there anyone has experience in drawing flowcharts by using latex?
by doing a small research I found PGF/TikZ to be most appropriate package for this purpose.
Any comments on that?

What is the best editor for the purpose of drawing flowcharts in ...