Problem with arduinoUno-Shield Ethernet and initialization of SD

Hey, i'm trying to use my arduino Uno with Ethernet Shield, my first step is use to the SD card with the sketch CardInfo and I have a problem with the initialization.

If I format the SD with FAT32 I get the error:

Initializing SD card...Wiring is correct and a card is present.
Card type: SD2
Could not find FAT16/FAT32 partition.
Make sure you've formatted the card

But if I format the SD with FAT I get the error:

Initializing SD card...initialization failed. Things to check:
* is a card is inserted?
* Is your wiring correct?
* did you change the chipSelect pin to match your shield or module?

Please could you help me? what is it my error?

Read this topic.
http://arduino.cc/forum/index.php/topic,125646.0.html