I Cannot Shut Down My Computer - because LimeWire will not shutdown.

I got a new iBook G4 three days ago and downloaded limewire onto it. I left some music to download and when i came back to the computer limewire was frozen. Everything else was working perfectly. I tried to restart my computer and an alert popped up saying "the application LimeWire has canceled the restart. Quit limewire first and then try again." Immediately after, a box saying "shutting down limewire" appears, and now there are about 12 of those boxes on top of eachother and nothing is changing. This has been going on for 24 hours and i have NO IDEA WHAT TO DO! This is my new computer for school and im afraid i've already ruined it!

Umm.....Force restart? You know how to do that, right? I'm assuming iBooks come with a external force restart button. If not, hold the power key down for a few (10-15) seconds until it reboots.

[philippe99]

A good summary of Apple's shortcuts: here
Phil