can't delete SD card error code -61
I have a new 16 GB SD card that I formatted on my Canon camera. I can pull the pictures off with no problem, but when I go to erase, I get "error code -61" I know this is a write permissions error - and when I Get Info, it's not locked but it does say I can "only Read" under Write Permissions so I understand that this is the problem.
I searched and everyone says that it's b/c something is formatted NTFS but it's not, it says FAT32. But, it does say MS-DOS (FAT 32) if that makes a difference?
I used Disk Utility as everyone suggested. The Erase function is greyed out (and I'd prefer not to have to do that every time I take photos!)
Not sure what to do next? Is there a way to reformat the card?
Thanks for any help -
Alexa
imac, Mac OS X (10.5.4)