title: iPhone simulator black screen in xcode 4.1 on Lion (iAtkos L1)
body: <p>i am new to mac and i started working on iOS programming. Recently i get problem when i run or click on Build &amp; Go button (in Xcode 4.1), my project does building but Xcode isn't able to run my application in iPhone simulator. I just see blacnk black screen.</p>
  
  <p>i have tried different project templates but it doesn't work and by the wary i m working in view based application template.</p>
  
  <p>But when i start iPhone simulator outside of Xcode, it does run in good condition. i don't get the black screen.</p>
  
  <p>Please! help me solve this problem. Because i want to work on iPhone applications.</p>