If you're talking about a whining noise from the starter motor, it sounds like your battery is a bit flat. If the battery is fully charged, the starter spins very quickly, causing a toothed gear on the starter motor to fly up the shaft on the starter and engage with the flywheel teeth, spinning the motor and hopefully starting it (this is called the bendix gear). If the battery is below par, the shaft will still spin, but only slowly, eventually causing the bendix gear to engage with the flywheel. Its all that I can think of, anyway!
John
June 2009