I am trying to upgrade the speed of a home built arcade purchased off of a classified a few years ago. I thought all I had to do is put the hard drive in to another machine but it looks like it doesn't like the video card. I can't install any drives because I can't log in. Which is why I need help. It is running Ubuntu 6.06. I don't know if there is a way for me to get past the log in or if could some how save the arcade files and upgrade the OS then put the arcade files back on. I would like some input on this either a work around or let me know if I am screwed and have to just use the old hardware.