Seagate has a utility where you can look at the SMART data. Windows will actually notify you when your reach a point of where the drive will fail. Run seagates utility, if they determine it is bad. Go to seagates site and check to see if still in waranty. If so, do the rma and get a new one. Hopefuly you have one of the 5 yr models.
I used the online "seatools." When I do the quick test neither "seatools" nor " HD Tune" finds a problem. But they both find a problem doing the slow test.
After doing the online test, seatools tried to do an online rma but there was a problem:
I am an american living in Spain. I did the test on USA webpage may this caused the problem with the onlive rma. The drive is 80 gig seagate which sells on newegg for $40. I bought drive 14 months ago a local store here. This summer I am going to USA and I plan on buying one or two