Problem with mine is that it gives me the choice for about 2 seconds and disappears. I have been able to successfully choose about 1 in 4 tries. I think since the win 7 isn't finding a driver, it is causing it to disconnect. Any ideas?
I had this issue on windows 7. In my system tray, there was an Add Device icon with a spinning circle. I clicked on that and it said that it was checking Windows update for updated drivers. I double clicked the icon and in the window that appeared, I had the option to turn that off. After that, I unplugged and replugged and was fine. I doubt this will fix everyone's issues, but hopefully it'll help.
I had the same problem yesterday. I was downloading songs and photos and about half way through it cut out and wasn't there any more under the drives. I finally gave up and took the sd card out and manually installed them onto the card.
Well my issue is resolved by using the usb charging cable that came with the phone. I was previously using a different micro usb cable I had lying around. Don't know why it would make any difference. Wierd thing was that I tested out the older cable with a different pc and evo and it worked fine. Guess this computer only likes the cable that evo came with for some reason.
This might sound like a ridiculously simple solution, but it worked on mine. Don't plug into a USB hub. Plug it directly into your computer's USB 2.0 port. I researched online, tried all sorts of other things. Even changed cables. Nothing worked until I moved from the hub to the PC.