Who break 'Screen Brightness Adjustment'?

[h30]

The " Windows 7 RTM (32 & 64 Bit) *UPDATED*" may break the "Screen Brightness Adjustment" on my system.

I have tried to update my HP Intel Graphic driver to the latest, but no work!

I see that the magnification.dll may break the power options function, could it break the Screen Brightness too?

Any one have any idea?