So, I have a Mid 2012 MacBook Pro, running OS X El Capitan 10.11 Beta (lastest?), with 16GB memory, and a 256GB SSD. Recently I had some problems where the screen would randomly freeze, the computer would shut down, and the three "beeps" happened. I replaced my Ram and that no longer happens. My computer was fine for about a month. Now, the screen has frozen, maybe twice, in the last month and shut down (no beeps this time). Just yesterday, my keyboard stopped working and a reboot "fixed" that issue. It just seems to be rather "glitchy" and I'm concerned why... If anyone could give me any advice about what I should do, that would be fabulous. (Also, the closest Apple store to me is about 350 miles away, so that tends to be not an option...) Thank you in advance for your help.