I have had a MBA 13" 2011 for about 2 months now and I really enjoy it, it is great and I love all of the features it packs. However, I have had just one minor problem and I'm not sure if it is related to my computer or to the Lion OS. When I use my computer, sometimes it locks up and completely freezes at random. I may be browsing a web page or just writing a document in pages or even just leave it sitting and come back, but it will be completely frozen and the only way to fix it is by turning it off and back on. I'm not sure if this is a Lion issue, or my computer? Any help would be greatly appreciated!