Hi Robert_U, Thanks for the response, I have 128MB showing in BIOS (HD3000 running Windows 7).
64MB showing in BIOS (HD4000 running Windows 8.1)
Acer Aspire 5750
HD3000- Driver Version:126.96.36.19947
Acer Aspire E1-571:
HD 4000- Driver version: 10.18.10.3496
I also have the AU Optronics B156XW02 v6 screen in both systems.
Thanks again for your time.
EDIT: I have forgotten to attach my snips.