Today I got the 4GB of RAM I ordered to upgrade my 13" MacBook Pro. Installing the upgrade was quick and painless procedure. However after I successfully installed the RAM the backlight on my keyboard stopped functioning. I called up AppleCare support and after a few prompts I was connected to Megan. The first surprise was that Megan did not seem to be from a foreign country. Second was the manner in which she counseled me through my new problem. She was pleasant and after informing me I was out of phone support she advised me of all my options. I was lucky because when I tried to reinstall the old RAM and I discovered I had knocked a ribbon cable that supplied power to the backlight out of its place. After replacing it my backlight came to life. This is the type of issue that likely would not have been noticed or solved over the phone. However I will never forget how painless and helpful my experience with AppleCare support was.