Computer: Macbook Pro Details: Model Name: MacBook Pro Model Identifier: MacBookPro7,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.4 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 3 MB Memory: 4 GB _____________________ I am furious right now! I just wasted over 2 hours exporting an hour long movie I edited. 40% into the export, and my Macbook FROZE for no reason. I was watching a movie on my External Hardrive (seagate) and the movie just glitched and froze. I tried pressing ESC but nothing happened. The movie was in freeze frame. It's a 1.5TB external hard drive. It should have no barring on how it effects my actual computer, but for some reason it caused my whole mac to freeze. I had to restart my computer, thus losing my export. Why did this happen? I thought Macs were supposed to be Non-Glitchy. Is it because this is a 2010 machine? I am running Snow Leopard. iMovie '09. None of this should be an issue at all! Why did it freeze? I have 4G of Ram. I also have onl 20 GB of Hard Drive space left. But still, what does this have to do with my computer freezing? Is it recommended you don't watch movies on your external if you're exporting a movie???? Please any advice would be helpful. I edit a lot, and so far this Macbook has cost me a lot of time and patience. This is the third time this has happened. I am seriously wondering if I need to buy a new 2015 Mac with 16GB of Ram. I had a mental breakdown tonight because of this and my landlord has threatened to make me move if I can't calm down. I don't have insurance on the computer anymore. I just am baffled that Mac is so horrible at not even having a way to SAVE what you already exported. Seriously it was 40% complete and then I had to reboot the stupid thing because of a glitchy file. Makes no sense.