Why is my AClient not installing during a Windows 7 Scripted Install in GSS 3.0?

Dear All,

I have set up a Windows 7 32-bit Scripted Install task within GSS 3.0 according to the How-To process:

https://www.youtube.com/watch?v=QaRm-wBw4Oo&featur...

and I have applied it to a VM machine. However, the AClient is not installed and the build process stalls at this point.

I have not strayed from the path and made no changes at all to the process. I have, however, created an Unattend.xml (as the video says) from the Unattend_Vista.xml that is supplied with GSS 3.0 (adding in Product Key and Language/Locale elements) and I am wondering if this is the issue, but I cannot see what is wrong.

Does anyone know what I might be doing wrong?

Kindest regards,

QuietLeni