I installed Limewire (Pro) today (my friend gave me a CD). It was working fine and I downloaded a couple of songs already. Suddenly, my computer started slowing down and eventually kinda froze. I restarted it (after how many tries) and when it finally restarted, I click to open Limewire and it won't open. It doesn't respond when I command it to open. There are no error messages or whatever...basically, nothing happens. I realized it's also happening with my Norton Antivirus 2002 and my Java Web Start. No response. What's wrong with it and how do you fix it ASAP?

P.S. I uninstalled LW and then re-installed it. Still nothing. Help!