Sorry to start a new thread on this but all previous discussions were like 3 years old... I bought my 2009 Macbook Pro a month after it came out and about a month after that some of you might remember that there was an issue where people installing SSDs were only getting SATA I speeds (1.5 gbps). Then Apple issued a firmware update to fix this and give people SATA II speeds but it caused a lot of problems for people with 3rd party hard drives. I had a third party hard drive installed and since I didn't need SATA II speeds at the time I just stuck with the 1.6 firmware and ignored this update. BUT now I just installed a Samsung 830 256gb SSD in my macbook. Installation went perfectly fine but read and write speeds aren't as good as I was hoping and I figure this is likely due to SATA I speeds my SSD is working at (I checked in system information). I haven't heard any issues recently with regards to this EFI update...will this work with my macbook pro or will i get the horrible beachballs. Anyone with a 13inch 2009 Macbook pro and a Samsung 830 drive have any input? Thanks!