hey friends, i have a rooted g1 with cyanogen 4.2... under settings-sd card, unmount is not illuminated... thus, i have no option to unmount current 1 gig card. i have a new 4 gig waiting for use. i risked it and put it in... and at boot, it would show me the t-mobile g1 loading screen, then stay put on the blank rom loading screen. (the rom always loads with a blank screen) as soon as i put the 1 gig card back in, the phone boots fine! any ideas? i need more space and i spent a whole whopping 12 bucks on the new card lol!