Hi guys. I've got a 4,1 Macbook here, bought secondhand from eBay. Works pretty well, but there's one issue that I find particulary annoying: it won't go to sleep when I shut the lid. I have to manually put it to sleep, so it goes to sleep, then shut the lid. When I open the lid, it doesn't come back on, I need to go press a key. This is a problem for me because it means that I can't operate in clamshell mode attached to my nice big 2048x1152 screen. I can't plug in everything, put it to sleep, close the lid, then wake it up to work it on the big screen - it can't sense that it's in clamshell mode so it just wakes up the screen and all I can do is either mirroring or extended desktop. Any ideas? Are there any applications out there that may help. Thanks!