I hardly ever post to forums but after hours of frustation and finding a solution to my connection issue, i figure I would post. I think many others are having the same issues.
Ok here is what happend.
First time plugging in the mp3 player, it seemed like it was going to work, found new hardware, found sansa express. But then, I hear the disconnect sound, then the connect again several seconds later, then a disconnect. It might repeat several times. Finally, it would stop. (Give it several minutes). I go to device manager, under USB controllers, it would have a yellow exclamation mark on mass storage device. (I then tried several different things to get it working, only one thing worked.)
Right click the USB mass storage device, Update Driver
Select, not at this time, for the windows updater, Next
Select Don’t search, I choose to install Drivers.
Make sure, show compatible devices shown,
It will then reinstall some drivers or something, then plug the mp3 player back in. Give it time and it should pick up.
Be patient here, also be patient when it is not working, so windows will give you the bad mass storage device item.
I’m open to receiving payments for this support. :-)