When I wanted to root my Captivate, I used this tutorial Idi0t-Proof All-in-one Starting from Stock Guide to Making Your Samsung Captivate Awesome <https://docs.google.com/document/d/1YvC_lLbjk06WOttsifG8fD2QUHvC9_rDtZdNrDZKAFc/edit>. Maybe you followed too or not, but the thing is that, once I...