I installed a new 1Tb Seagate HDD into my PC on Saturday, and since then Vista has logged over 60 bad sectors on the drive and it is still finding more, and I have only had the computer on for a couple of hours each day (at the most). So that's roughly 8 new bad sectors per hour of operation on average... (and this is only on 50Gb of the drive, since the rest is still unformatted, and hence used)
I'm thinking this is unacceptable for a brand new HDD, but wanted to check with the experts here first before I go demanding a replacement....