[vlite vista image install error!]

Hi People.

Maybe I am doing something real stupid but I keep getting the following error when trying to install my cut down vlite vista image

The following error apperas when vista is neraly installed

" windows could not parse or process the unattend answer file for pass (specialize). The setting in the answer file cannot be applied"

Anybody know what I need to chnage in vlite before building the new ISO??

Many Thanks

Dave