I have an early-2008 MacBook Pro 4,1; 17" 2.5GHz Core2Duo and I upgraded the hard drive to a Kingston SV100S2 128GB SSD drive.
It worked perfectly for the first 4 months after purchase but 3 weeks ago the problem started when I tried to start my MBP and the grey Apple logo appeared with a kind of progress bar underneath it and then it would just power off (SMC and PRAM reset didn't help). The disk utility showed an "invalid node structure" problem which it wasn't able to fix and later the disk would be unreadable. Since the first time, this has recurred about 6 times. Each time I had to format the drive, install Mac OS X 10.6.3 again from either original DVD or it's image on hard drive (which is much faster), and transfer files from a Time Machine backup.
The drive would subsequently fail again after a couple of days each time. I have discovered that Kingston has released and official URGENT firmware upgrade, which I have installed after the 3rd failure, but it apparently didn't help. Also disabling hibernation and sudden motion sensor had nothing to do with it. Last time it failed (today), I was installing some updates and it failed after I was restarting, but I don't think it has anything to do with it either.
I am taking the drive back next morning to the retailer, where I bought it cheaply as a business owner, and I will ask them for a replacement, however I am still not sure if it could be my mac causing this chaos with the drive or the SATA cable being faulty.
I would welcome and be thankful for any constructive thoughts. Right now I had to replace the drive with the original one and everything is literarily at least 5 times slower and takes as much longer time to load, what is really bothering me. Thanks again.