Cant Open Program- Java problems

[Foxhunter]

Recently i tried to open Limewire and i got a message saying that the program had to exit b/c of a problem w/ my java virtual machine......i uninstalled limewire and reinstalled it, it still wouldnt open. I then uninstalled limewire and my java apps. from the add/remove programs. I then reinstalled Limewire and went to Sun's website to get my Java app also.....I still cant open the program and when my computer tries to use a java app., my browser just shuts down. Im assuming that the problem is w/ java b/c i tried to contact logitech's online help(for something else) and my computer just shuts down all internet explorer windows that i have. So now i cant open limewire and screwed up my java also....