hey brad, i had the exact same error, sicne u said u replced the cables and no dice, try swapping the master to slave and the slave to master, thats what i did and havent had the error for month, i was alost certain the drives were toast, i freaked. i dont know why the jumpeds make a differnce like that but they do, also if that dosnt work change the location of the drives as far as the cabling goes, i just messed with all the possiblitys for an hour and get hr running again.