[b4u2]

OK what am I missing? I downloaded the latest GB ROM. Put it in the root of my sd card. Clicked on it to install and it wants me to open either es file explorer or rom manager. I go with rom manager and then it asks for pre-installation checks *Backup Existing ROM, Wipe Data and Cache, Wipe Dalvik Cache I select all three* then it just seems to sit there. How do I know it's doing anything? I don't remember it being this much trouble the last time I flashed.