After trying multiple times to flash miui onto my captivate I gave up and decided to flash cognition. My phone is rooted and I downloaded rom manager. I downloaded the rom from whatever the official website is...i forget the name. I go into recovery mode then to clockwork recovery. Wipe data and cache. Then I install the rom from the sd card. It does its stuff, even shows the respective bootlogo. Then the phone restarts with a different background, an option to change lockscreens, and a percentage over the battery. Everything else is just like the stock rom. If I am missing anything that isn't listing nd fault flash the rom please tel me. Thanks!