Is thermal paste/compound the cause of Red Ring of Death and Yellow Light of Death in each system? If so, is it because poor quality thermal paste was used or it was poorly applied? Does thermal paste dry out and need to be replaced often? If so, how often per the different types? I realize there are more underlying issues, such as the type of lead-free solder used in the Xbox 360 and poor ventilation and the fact that they basically tried to slap together a sports car out of tractor parts(hey Lamborghini pulled it off ), but I'd like to know how big of a factor the thermal paste is. Also, does anyone know what specific thermal paste is used in each system? Which thermal paste/compound would you say is the best? I've heard Arctic Silver 5 is among the top. I previously had two Xbox 360s and both started freezing up, never got a system failure but I sold them for fear of having giant paper weights that I'd have to use for target practice. I'm considering getting a PS3 now and I've heard that their failure rates are lower, but still significant. And of course now that both systems have base-models for $300, I figure it wouldn't be such an expensive paper weight if it did fail.