Unfortunately it's late, so I don't have much time to test it much, but it seems that yesterday's build (and possibly todays) plugging in the USB cable causes the Sansa to freeze. While the computer does recognize the Sansa, the screen goes black, the scrollwheel turns on, and it freezes, in a way that looks as if it is in Manufacturing mode. Please note that this is not manufacturing mode, and e200tool doesn't need to be used. If this happens to your Sansa, simply hold down the power button for 15 seconds to force it off, and press it again to restart it. I will look into why it is doing this tomorrow, after I get some sleep.