On speech control panel launch:
"The requested task cannot be carried out because the necessary engine could not be created. Please select a different engine and/or a different
audio device."

Any ideas? Registry fixes especially welcome, as I don't know what else is left to try. I tried:

1. Uninstalling and reinstalling office.
2. Removing windows\speech, and files associated with it, and then reinstalling.
3. Uninstalling/reinstalling Microsoft Text-to-speech sdk 5.1
4. Reinstalling the speech control panel and ms agent components.

Im assuming that this is to do with Vista? If so, wait till Service pack 1 lol