Try a different source next time. Perhaps that particular file is corrupt. Though a file can show as being corrupt for a multiple of reasons. People often downld files & leave them in their shared folders without checking them for many weeks. That's a bad habit.

Make sure you're not totally firewalled. Allow LW full access thru your firewall & only one firewall is advised since 2 can interfere with each other; instructions: http://www.limewire.com/english/content/firewalls.shtml

If you're refering to audio files then be aware of this: T3 Spammers; mp3 Bit-Rates Versus File Sizes