I'm having a strange problem with Skyrim. All of the voices are out of sync with the characters' lips. It is as if the animations are going much more slowly than the recorded audio. The audio finishes a few seconds before and their lips are still moving. My conversation options appear after this also. Has anyone else experienced this, or know of any tweaks that might help?

My PC is starting to get a bit old, but I am running things on the lowest settings.

Intel Core 2 Quad 2.40 GHz
NVIDIA GeForce 8800 GT
3GB DDR2 Ram

Let me know if any additional information would be helpful.

Do you use mods or did you alter the .ini files in any way?

No mods. As a half-baked idea to ty to fix it, I changed the vsync value (SkyrimPrefs.ini, setting iPresentInterval=0), but that made no difference for the lip sync issue.

Set the iPresentInterval back to one, and in the Nvidia control panel make sure the setting 'let program decide' for vert sync. It needs to be on. Or if you are going to turn it off, you need to have another program limit your FPS to 30 if your computer is not all that great, or 60 FPS otherwise.

Lip animations in this game are frame-timed. If your frames get too high (V-Sync keeps this from happening), the lips will lose sync with the dialogue.

Your two options are A: Turn V-Sync back on, or B: http://www.skyrimnexus.com/downloads/file.php?id=34

This is how it was by default when I started, and the error still happened.

I have now updated the driver to version 285.62 and I've set iPresentInterval back to one.

The problem still occurs using either "Use the 3D application setting" or "Force on" in the NVIDIA control panel. As for the theory that it is going too fast for the sound, this doesn't appear to be the case. The animations are going more slowly than the audio dialog.