So, right now I have Ubuntu 7.04, and I want to install 12.04 LTS or 13.04, but my computer can't boot the live CD of both of them, but can boot CD of Ubuntu 7.04 or Windows 7 ultimate. I think it can be hardware problem because I have very old PC, but I'm not sure. I had Ubuntu 13.04 installed, but after installation it haven't booted (I had windows xp installed before) and after that the CD of 12.04 or 13.04 could not boot anymore. Any suggestions what should I do to boot live CD?
P.s. I can't boot Linux Mint too and don't have internet connection on that PC.