[xfreak44]

i have a question. when i upgrade roms i just put the file into my sd card then use rom manager to install right? without using a pc, just select wipe data and cache, but when i do that it dose not work it takes me to the screen with a picture of the phone with a red circle and dose nothing, only way is to use that enter recovery command from the pc. also rom manger keeps giving me this force close error. i have rom manager premium

Thanks