This is a relatively new hard drive (about 3 months), and now it spontaneously mounts itself read only, spews out DMA errors, and gives I/O errors. When it does work it is very sluggish. I don't know if this is the right place to ask this, but I don't know if this is a hard-ware problem, a software problem, or even where the problem is. Any help you can offer will be appreciated. Its a Maxtor 7Y250P0 250 GB.