The file is 620mb, plus around 10mb of loading software. I would go with a 1gb card to be safe.
I have a 2gb card in mine and it has both the Texas and South Central maps loaded on it
Texas_Cur
Can you toggle between the two maps? I live in LA, and louisiana is split between the south central and south east maps. I currently have just the LA map loaded, but would rather do the south east and the south central maps. Did you have to load them both at the same time on the blank card, or did you do one map then the other?
Thanks,
David