I recently had to re-install WinXP SP2 and received all the cosequent updates. Since then every time I play a DVD using either Media Player 11 or Intervideo WinDVD 8, the system freezes on exiting the program. This requires a manual re-boot. It does not happen with the Nero Showtime player. I have reinstalled all graphics and DVD drivers, tried different Codecs and removed and reinstalled WMP11 and WinDVD but cannot resolve this. Any ideas out there?