Asus P31SD Notebook Bios 204

Fixes:
1. When OS is Win7, enable the Optimus function. Otherwise, XP, disable the Dgpu and let the system use Intel VGA only to boot.
2.Modify BIOS Setup menu
3. Fix backlight issue under XP OS
4.Fix FancyStart can’t run normally
5.Improve the protection of HDD
6.Update SandyBridge CPU microcode
7. Fix bug when Hdd password have some specific ascii code, user password will wrong after change master password in setup menu.

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Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.