I recently upgraded my iBook G4 hard drive to a 160G, and took out the old 30G drive and put it into a Transcend Storejet 2.5" external case. It was working fine, but today when I plugged it in it started spinning as usual, then stopped after ~9 seconds. It started spinning again straight away, but every 9 seconds it stops and restarts. It still seems to be working fine (in terms of writing/reading) but makes a lot of noise and I'm afraid that the stopping/starting isn't good for it. I tried unplugging it and tried it on a different computer as well with no luck. Any ideas about what might be causing this or what might fix it would be awesome!