I just purchased a Mercury Extreme Pro 6G SSD 240GB - the OWC website says this should work in a Mid2010 MacBook Pro. However - I can't get it to work. Am I doing something wrong or did I make a mistake going 6G? This is what I did: Installed the SSD in place of the internal MacBookPro HDD. Tried to start the MacBookPro. After pressing the power button, the 'welcome' tone sounds and the screen backlight comes on. I press the C key (I have a Lion installation disk in the optical drive) but there is no further activity. I do not even get the apple logo appearing on the screen. If I do the same steps with the original HDD in the machine, I get the 'welcome' tone, the screen backlight comes on, the apple logo appears after about 25 seconds and then the Mac OS Utilities menu comes up after around 9minutes. Model Name: MacBook Pro Model Identifier: MacBookPro7,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.66 GHz Number of Processors: 1 Total Number of Cores: 2 L2 Cache: 3 MB Memory: 8 GB Bus Speed: 1.07 GHz Boot ROM Version: MBP71.0039.B0E SMC Version (system): 1.62f6 Appreciate any ideas or assistance!