I just reset factory settings via the profile menu and selected United States as my country and it now works. Not sure which one fixed it!
I have an LE37B650, with the latest firmware installed, connected to my wireless router.
I've managed to download the YouTube widget, and it appears at the bottom of the screen but says 'Loading' and doesn't do anything. So I can't actually load the widget.
I've downloaded a couple of other widgets which work perfectly. Only reason I forked out for the wireless dongle was because I knew YouTube was available.
Any help would be greatly appreciated. I live in the UK, by the way.