I've had a Rise for a few months now with a 32gb microsd. I recently attempted to slap my 64gb microsd (currently in my Sansa Clip Zip) in the Rise, but to no avail. Tried exFAT, FAT32, experimented with the cluster size, and each time I simply got "perparing microsd...card is safe to remove." Is this an issue with ICS 4.0.4, formatting of the card, or something else? I'd love to have the Rise be my multimedia player, and swap the 32gb into the Clip Zip. Any help would be greatly appreciated!