Hello Friend.

I am thinking to get Linux OS in my PC. Can anyone suggest where to get free CD for it? And which is the Latest Version of Linux. Before a year i has install Ubuntu but too many problem with software compatible and not connecting with internet was main.

Thanks in advance.

Moved: This thread is more suitable in Linux-Newbie and has been moved accordingly to help your thread/question get the exposure it deserves.

Ubuntu has rather good hardware support, so you may try it also this time. However, if there were serious problems, I would make some research how to solve them.

It might be better to start with defining what exactly linux is.
Linux it self is only a kernel which is currently at 2.6.27.6 http://www.kernel.org/
This is not an Operating System. It is however what makes linux based distributions (such as Ubuntu) be considered linux. It is basically the brains.

Most linux distributions contain a core set of programs from the GNU/Linux operating system http://www.gnu.org/ as well as a lot of other software.

You should start here http://www.linuxquestions.org/reviews/index.php to get a good idea of where to go next.

Ubuntu, however, is a good start.

Most things should work out of the box. Generally the only thing a first time user will need to configure is 3D support and wireless cards.

Many distributions offer 'live' cds that will work without installing anything. Additionally, Linux magazines in book stores often contain live cds.

Before installing anything. Be sure to back up all important data as dual booting can be tricky.

Enjoy.