Well I posted a thread similar to this a while ago, but it's become considerably more annoying now, so I thought I had to post this, plus experiencing some problems with Full Screen as well. Anyway first, with me having a Macbook Air 11, I have very limited vertical screen real estate. So I naturally opted to place my dock on the left, but what I have noticed is that Lion's Mission Control isn't really made for Dock's pinned to the Left or Right. It's suited for bottom pinned docks. So then I started screwing around with my settings a bit, and I realized that if I reposition between bottom and left a few times (w/ auto hiding enabled), it becomes normal. However, I soon realized it's not a permanent solution. It's definitely bugged. So below I have a few examples, actually quite a few. First Mission Control with Left Pinned Dock - 2 apps: Mission Control with Bottom Pinned Dock - 2 apps: How's it's supposed to be: It gets considerably worse with more apps, as shown below. (the more apps, the more they overlap): As for my issue with Full Screen is that the app always go the end of the other spaces, instead of next to the adjacent space. It's quite irritating: Anyway, are there any suggestions or are other people also experiencing this or is just me?