I bought Hydro Thunder Hurricane on Windows 8 but can't use it because the sign in process (xbox live) the doesn't work. The loading icon is spinning indefinitely, no error. My Xbox account work, I can sign in successfully on the xbox app.
Thx for your help!
Have you tried to sign in with any other of the games on W8? Try the free ones like the solitaire collection, Minesweeper or Jetpack Joyride. If you can sign into them then it might be worth just uninstalling Hydro Thunder and re-installing it to see if that clears anything?