I'm using explorer. but only the .jpg files come up when the cameras in the Canon EOS DIGITAL REBEL XS. When I put the card(4GB SDHC) in my Linux notebook or another laptop I tried running XP, it has other files on it. I'm fairly familiar with Windows, well XP anyways. I have the camera sitting right here and I'm willing to try anything that might work. I know there's firmware hacks out there for the camera but none of them mention anything about fixing my particular problem.