I started using SETI@home in May 2000 and i crunched for a few months. I had to do a clean install of my OS and I never got around to re-installing SETI. Two years later, June 2002, i received an e-mail from SETI@home telling me that they haven't heard from me in some time. I was very surprise at this, they even had all of my old stats, etc... So i started crunching again.