Barely less than 1 month of installing the RMA replacement memory, the new memory card has gone bad again. I know it went bad when the N810 was still running, as my music/playlists went missing that were on the removable memory. I know I was listening to some music earlier, and it's strange how the card just disappeared. Re-mounting it didn't work, and finally, rebooting the N810 (several times) didn't seem to help either. Thank goodness I found out about this bad memory before I tried to do the new SSU... it would have driven me nuts trying to find out what might be wrong! -K