On 31 May 2006, at 14:46, Suzanne Hackett wrote: > Hi: > > I have a 15” Ti Book DVI. Sometimes on startup, well after the > chime, I get a single, mournful beep coming out of the right speaker. > Everything checks out with Apple Hardware Test and Disk Utility and > I don’t appear to have any other problems. > What is this? > > Suzanne Single beep usually the RAM wasn't detected. Does the computer boot after the beep? You could check to see if the DIMMs are properly seated. -- Tarik