RAM Question I'm just installing Vista again on my 2nd HDD. (I have XP Home on another) I just bought a 2x2GB kit of 1066MHz RAM. I previously had 2x1GB of 800MHz, and the guy at the store said it's better to replace the 2GB with the new 4GB, because 4GB of 1066 is better than 6GB of 800. My question is, if this is really true, for gaming mostly.... and also just wanted to see if there's any way to make those 1066's work with the 800s, while not slowing down to their speed.... Does dual channel not do that? Thanks, Mark.