I would add to your letter to fix the backlight issue of LCD Poster.
If I set from BIOS the backlight OFF, it stays OFF untill S3 resume. From that point it is always ON.

Example:

- backlight in BIOS is OFF
- starting a cold boot
- the light is ON until the last POST step
- as soon the LCD Poster is displaying time, the light goes OFF (as programmed in BIOS).
- I order Vista to put PC in S3 mode (S3 is forced in BIOS)
- the PC goes OFF except the power on led that is blinking
- I wake up the PC touching a keyboard key
- after some seconds I have my PC completely on and functional
- the light of LCD poster is ON (not correct).

I can duplicate in my system this bug 100% of times.