[IanPhillips1]

Stop! Dont go get a new card. Mine did this today all of a sudden, I had the same error message on my desktop. If your PPC still reads it under the memory screen under settings it will show that all the storage that was on there is still there just not visible. I ended up putting my card into my wives VZW Chocolate and reformatting it and it worked like a brand new card in my 6900. If you can do this instead it would save you the cost of the card, just use any cellphones format function.