I usually order my RAM from Crucial, but I saw on NewEgg that G.Skill had the ram I needed for around 130 compared to Crucial's 170ish. I went ahead and bought the ram from GSkill. I install it (8GB RAM) on my MacBook Pro and at first things looked up because it started fast but once I tried opening programs, they would crash left and right within 10 seconds. It got so bad that I couldn't really open anything up or else it would crash. Even something as small as pressing enter to respond to a instant message crashed Adium..It was pretty sad. So I wanted to know if GSkill is any good or if I just ran into some bad luck? Also, I'm pretty experienced at installing RAM, its not that hard. I made sure I discharged of any static before installing. My MacBook Pro is less than a year old and has no hardware problems. All the crashing didn't start till I installed the ram. Now, I have the stock ram back in. I've already setup to have this RAM returned to newegg a.s.a.p, but I didn't know if I should re-order more ram from them or should I just drop business with GSkill all together? Also, What are some for sure signs that the ram is defective?