Can anyone help me troubleshoot this error message? After switching to MMC boot, I get "Boot from mmc2 failed, booting from flash."

N800 running latest firmware. 8GB internal, 2GB external. I reimaged before beginning the dual boot procedure. Used the updated boot menu from genius fanoush. Used gnutar. Did not encounter any unusual error messages throughout. Used Schmot's instructions (except for the size of partitions) for setting up the partitions. Used nmacleod's handy dandy nupgrade to do the rest.

TIA
k