I have recently noticed a change in limewire behavior. When it's open and running for an extended period of time, or sometimes just 5 or 10 mins. after a download begins, all my other programs become almost non-responsive. So, I open up windows task manager and see that limewire is using 100% of my cpu. It bounces from say 80 to 100%. I have it configured with up and down slots and speeds... maybe not good enough??? No detected viruses or malware.