Vaio Z11MNB: Brightness adjust doesn't work in SPEED Mode

Hello,

I've just installed Windows 7 Ultimate 64bit on my Vaio Z11MNB. As Google told me there is a problem with the FN + F5/F6 brightness adjust in speed mode.
All Sony software ist installed correctly and in the newest version I found.
As in many threads mentioned I followed the right order. But I still cannot adjust the brightness in speed mode
This thread http://forum.notebookreview.com/showthread.php?t=432176 lead me to the right graphic drivers I thougt... Okay these drivers( http://esupport.sony.com/US/perl/swu-download.pl?mdl=VGNZ790D&upd_id=5394&os_id=49) are for the ZD790 but this shouldn't matter it's the same 9300GS chipset...

The following sony software is installed:
SETTING_UTILITY_SERIES_5.1_5.1.0.11200
SFEP_DRIVER_SONY_8.0_10Q1_O_7_8.0.1.1
SPIC_DRIVER_8.0_09Q3_7_8.0.1.1
SONY_SHARED_LIBRARY_5.5_5.5.0.10160
VAIO_CONTROL_CENTER_4.1_4.1.0.10160
VAIO_EVENT_SERVICE_5.1FH_5.1.0.12010
VAIO_POWER_MANAGEMENT_5.0_5.0.0.11300
VAIO_SMART_NETWORK_3.1_3.1.0.11250

Any ideas what to do?
Another smaller problem: From time to time there is a yellow exclamation mark at the SD-Hostcontroller in the device manager. I've googled a lot but there seems to be no other driver than the windows included. VEN_1180&DEV_0822

Thanks for the help!

sanyo

 

You didn't mention the "Firmware Extension Parser Device Driver" in your list - did you install that too?

 

Isn't it the SFEP_DRIVER_SONY_8.0_10Q1_O_7_8.0.1.1.ZIP?
My device manager shows a "sony firmware extension parser device"!

 

I've got it: Simply use the newest bios version of the Z21ZN!
http://support.vaio.sony.eu/computing/vaio/downloads/updates/index.aspx?l=de_DE&m=VGN-Z21ZN_X&os=10