[Mike5150]

I tried the full format, and I tried running chkdsk before and after the full format. Chkdisk found nothing wrong with the card, and neither did the full format. I would think that if the card was corrupted that Chkdsk would at least find it right? I'm trying the sdformatter program now, what is the "format size adjustment" option? Should that be on or off? Any other ideas?