Please don't think i'm anti-torrent [i'm not], but i have had a very high proportion of faulty/corrupt files via torrent compared to direct links. Best to dl MS versions or locked images from a fast non-commercial site and you have less chance of a problem. I would do exactly what you said and dl again from another source, but first try a hard reset or clear NV on your unit to see if it stops it 'going crazy'.