A number of things may have occurred. Gnutella is a P2P file sharing program that allows users to download a number of things, including illegal copyrighted songs and movies. I believe Limewire is one of the client programs. The larger movie and music companies are taking steps to prosecute illegal users of such P2P software.
In your case, either the company incorrectly identified your IP address as the culprit or a user was able to "spoof" your address when downloading.
Hope this helps.
Using a Dell Dimension 8400, Intel P4 530, 1GB DDR SDRAM, 80GB SATA HD, Windows XP Home, Trend Micro PC-Cillin Security suite 2005, MS Antispyware and AOL's spyware. Got a letter saying my IP address, Charter Cable IP provider, was involved in copyright infringement by downloading via Gnutella a protected movie. Never heard of Gnutella and have no file in my system regarding the downloaded material. Informed Charter and they said they would reply to Universal. Do any of you good people know what happened? Was my computer compromised or the IP address or what? Thanks, Tom