Whenever I plug in a USB thumb drive, or a card reader for my digital camera, files "dissappear" or are corrupted. Usually it is the most recent file.
I have Snow Leopard (a bit older, I know, but reliable) working on my Latitude E6400, using the EDP and a few tweaks from the official research thread here.
I used the USB IO hack where I use a modified kext, and also tried the official kexts with the DSDT. With the DSDT fix I don't get mass storage working at all.
Anyone have this issue with SL or Lion? Anyone know if upgrading to Lion will fix it?