Hi, this is a virus. I had same problem, uninstalled limewire, reinstalled it and guess what same thing. I was running avast av. I ran scan didn't show anything. I knew it had to be virus, so went to town, bought Norton's and it found 6,300+ virus's all in same file. After deleting them, reinstalled Limewire and am having no trouble at all. it was the w32.alcra.f virus. Scan your machine, and remember, like I learned, you pay for what you get. Should have known better than a free AV. Charla