Without knowing which operating system you're using. I'll guess that you're using windows. Use your operating system search engine to search for .limewire Then click on the folder it belongs to. Open it. Then drag/send the .limewire folder to the recycle bin. Then try re-opening LW.

If you're using mac, you'd better tell me quick smart. And which os version.

In fact can you give us a total desciption of your set up: 1. OS version, 2. What firewalls you have, 3. ram, 4. HDD space available, 5. Connection type, 6. Modem & router brand name & model numbers, 7. Where are you trying to connect from (home, school, work, etc.)?