Am trying to reflash an XO but it quits after few lines with an error like this Net 516.6s 98KiB/s CRC mismatch for block #330: want 6ebdc7ac got 15f49d1b OLPC C2,256 MiB memory installed,S/N SHC837006DD OpenFirmware CL1 Q2E41 Q2E Use poer button to power off. I need your help. Rgds Eustace Amah