I own a Macbook Pro Intel Core 2 Duo, 8G RAM, OS 10.6.8. My computer experiences hard freezes, sometimes once, sometimes as many as 10 times daily. I have to hold the power button down until it shuts down, then power it up again. Sometimes it freezes before it restarts. Sometimes it freezes immediately after it restarts. I replaced the stock HD with a SSD about 2 years ago. The freezes were happening before then and continued after. Yesterday I replaced the RAM with an 8G upgrade from Macsales. While doing this I noticed that the battery had swollen to the point where I had to press on the case to reinsert the case screws. Also, the computer locked up after the RAM upgrade. I did save the crash report from a couple of weeks ago, but thought I should see if that's necessary to included here since it's very long. I have the MBP hooked up to an external monitor, keyboard and us a wireless Logitec mouse. Any help would be great! Thanks.