I've got a v1.0 tsoped XBOX with a 1tb hard drive in it. There is about 600gb of space free. Recently, the microsoft flubber screen began to stutter when starting my XBOX. It never used to do this. I connected a different hard drive to the system and it started up without stuttering. Any idea what causes this? Is there some sort of maintenance that should be done on these systems once in a while to prevent this? Is my hard drive going bad? Thanks.