I recently bought this Samsung 640 GB HDD to replace my old 750 GB Seagate Momentus. Now for the first two/three weeks, the new HDD ran fine but recently it has started developing problems: after a few hours of use, it just stops responding especially if I've browsed flash video websites in that time (Youtube and such). I thought this could easily be a Windows problem.. so I installed Ubuntu on my machine and it too has problems that are not too dissimilar to the ones with Windows (though it hasn't gone fully stuck on me yet). The HDD has a 9 month warranty and I might take it in to get it checked/replaced but what I want first is to exhaust any and all checks (software or hardware) just to get to find out what the problem is.
So fire away PGers, tell me what I need to do now?