Gnutella Forums - Basic LW installation obliterates my computer

Ok, I was really excited to get limewire because my cousin had recomended it and told me it was great. So I go home and begin downloading from the site the basic LW. After installation is complete it tells me that my computer is blocking some things necessary to run LW and asks me if I want to unblock. I pressed unblock and the computer immediately went into a quick blue screen, turned itself off and restarted. When window xp came back up it said it had recovered from a serious error and asked if i wanted to send a report. i said no and the computer went blue again and off and restarted. it did this several times wether i sent an error report or not. i finally pressed F8 during a restart, went to safe mode and uninstalled LW. I tried to install the "offline" version from the website and the same thing happened. I dont know much about computers so I dont know what is happening or what i can do. Please help, I am really looking forward to using LW.