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I have a year old 640GB Western Digital internal SATA drive which over the last couple of weeks has been troublesome. Very slow transfer speeds TO and FROM the drive (think under 1MB). Also the drive will randomly connect and not be visible in disk mang. in Windows 7. HD Tune reports the drive as clean. I've moved the drive to a different port and the issue continues. Other Western digital drives around the same size and age have no problem so I'm thinking maybe the controller on the drive is starting to go bad? Any ideas?

I'd like to get some input on how effective the 3M window films are(http://www.amazon.com/3M-2141W-Indoor-5-Window-Ins... I'd like to use this product to try and keep a small office (about 15x15 feet) as cool as possible. The office has a large window (about 6x4) and although I have some metal draw string blinds the room stays pretty hot most of the afternoon. I have AC and several fans in use, but room faces the afternoon sun and the AC and fans do little to help. The 3M film seems like it does a good job keeping heat IN (according to reviews), but I'd like to keep heat OUT. Replacing the window with a tinted one probably isn't an option. Any thoughts advise etc?