when I first boot up my desktop, it was still there when I transferred files
...this happened the next time you attempted to transfer from the drive after a reboot of the desktop
This has also happened with other big files
....is the issue only with large files from usb
....is this a usb thumb or usb hard drive
...are you useing vl5.9 std with vl-hot? or hal?
I see the transfer dialog when transfering 260+ meg iso from cd to 2gig thumb and from thumb to home dir on 5.9 std w/vl-hot. it does not appear to be large file size here. I unmounted the thumb and remounted prior to transfers. It is possible that there is a few secs after the transfer dialog completes and the actual file transfer completion.
sorry I can not be more help but more info may help others to assist