QUOTE(christophernuts @ Jun 28 2008, 02:35 AM)

now i just tryed my 1Gb sony memory card. and everything is on it.
does 3.90 no work with SanDisk 4.0gb cards?
I have 2 SanDisk 4 GB cards and they both work perfectly, as well as a SanDisk 1 GB card.
Have you tried installing the 1.50 kernel driver with the 1 GB Sony card?
Then maybe try backing up the contents of your 4 GB card, then formatting it using 3.90 M33, then putting the stuff back onto the card.