In addition to Meanie's good suggestion, another possibility you may want to explore is using a card formatted in your Zaurus rather than by the manufacturer or Windows. As I described in another post a week or so ago, that may have been the factor that allowed my bricked C860 to restore from a 1 GB Sandisk CF card but not from any of several other cards I tried. I recall seeing some posts suggesting that there were some subtle differences in FAT16 formatting on the Z and in Windows, but don't know if that is confirmed.