Anyone else have trouble with these fans in regards to their reliability? I bought over $100 worth of Aerocool's Shark red edition (of the 120mm and 140mm variety) case fans and a little over a year later the bearings are already starting to go. These fans seem to have a good reputation and they aren't exactly cheap, so I'm surprised that they are giving me these problems. Two of the 120mm fans started grinding\buzzing all of the sudden and it was very annoying. A month later one of the 140mm fans started doing the same thing. This isn't something that goes away after lubrication and I can even feel it rubbing when I spin the fan manually. They utilize fluid-dynamic bearings so I would have expected them to last a lot longer.