I knew I had this registry fix noted somewhere! If your DivX videos playback upside down (and you're not afraid to use RegEdit to modify the Windows Registry) simply do the following:
Go to HKEY_CURRENT_USER\SOFTWARE\Microsoft\Scrunch\WMVid
eo\Vertical Flip Packed YUV, and then set the DWORD value of this registry key to 1.
Go to HKEY_CURRENT_USER\SOFTWARE\Microsoft\Scrunch\WMVid
eo\Vertical Flip Packed YUV, and then set the DWORD value of this registry key to 1.