Emax

hi,
i got a problem here with saving my work to disk. i just made a 
multisample preset of my arp omni strings - after i sampled all i 
tried to save with " preset managment - nr2/ save all " .
then this error message came up saying "save to bank 01 / 01 bank 
error" and the emax doesn´t react anymore..i had to reset and lost 
everything :( ... i used a formated se disk. can anyone help ?
-phono