I discovered a new VGA BIOS Module for Acer Aspire 4530.
Guess which laptop was it from?
It was an EMachine G620!
It also uses Nvidia 9100M G
The original Acer Aspire 4530 VGA BIOS Module is:
BIOS Version 62.77.28.00.01
While I found this VGA BIOS in Acer EMachine.
BIOS Version 62.77.28.00.02
I tested on one of my BIOS archive and it works.
Soon I am going to update all my BIOS with this newer VGA BIOS Module.
You can see the change in VGA BIOS version when you press F2 to Enter BIOS.
You can find the BIOS Files here.