A friend and I have recently purchased the Droid. I was able, through the Notification, to connect using the USB cable and then to access my files and folders and transfer everything I needed to the phone--music, ringtones, photos, wallpaper. I then dismounted the USB connection, and all was fine.
I instructed my friend on what to do, and he was able to access the DCIM folder from his PC via the USB cable. After putting some photos in the Droid connection (under the new folder heading Photos), the Droid showed no media under Gallery. So he dismounted the phone, after foolishly deleting the folder that the phone wasn't recognizing, and has tried, in vain, to get the PC to recognize the phone ever since. He's done numerous things: rebooted the phone, normally and by pulling the battery; he tried turning off his McAfee firewall (no difference). He tried using different USB ports. Each time the PC recognizes the Droid (briefly), even long enough for him to click and look for folders to import, then--in a moment--the Droid drive is no longer recognized. He has repeated this frustrating exercise numerous times.
From my reading, this would seem to be a not uncommon problem. Is there an answer to this? I told him he could always just remove the card and mount the card directly into the PC or through a card reader, but because it is a micro-SD card, he doesn't want to do this on a regular basis.
Are there any answer to this problem out there? Inquiring minds would like to know!