ADK 8.1 , WinPe Resolution and SRT package

Hi

I have following setting in unattend file for display:

<Display>
                <ColorDepth>32</ColorDepth>
                <HorizontalResolution>1366</HorizontalResolution>
                <RefreshRate>60</RefreshRate>
                <VerticalResolution>768</VerticalResolution>
            </Display>

1. But when booted to WinPE, resolution garbled, do I need to add some drivers?

2. Trying to add SRT /WinReCfg package but got error message this action cant be performed on this image, any thoughts?

N.A.Malik