I just purchased a Sony Vaio model numner VGN-N365E and for a while was reading my SD cards fine. Now, everytime I try to acess it, it says cannot access due to a I/O device error. sometimes the 1GB works but the 2GB card just won’t work. the computer says it’s working fine, but i just don’t understand what else could be making it malfunction. i tried downloading the texas instruments flashmedia controller, but that didn’t seem to help at all. can anyone help me?