2013-08-22, 09:25
my login error fixed using:
close xbmc
then delete USER\AppData\Roaming\XBMC\userdata\addon_data\plugin.video.youtube\yt-cookiejar.txt
and your done
close xbmc
then delete USER\AppData\Roaming\XBMC\userdata\addon_data\plugin.video.youtube\yt-cookiejar.txt
and your done