K4 Kindle Freezes When Browser is Opened

I thought that the USBNetwork being enabled did this, but it's something else.
If I reboot it, it (K4) freezes upon selecting 'launch browser' and nothing will do anything until I hard reboot, which starts the sequence all over again. To fix I launch Duokan, enable wifi, and switch to kindle. As soon as I do so the browser works :huh: This seems independent of USBNet.
:thanks: