0x0000009F blue screen error on my t500-driver prob?

hi, this error happens sometimes when i close the lid and my t500(on win7 64 with switchable gxf hd3650) doesnt go into sleep mode...
the error is 0x0000009F bbcode blue screen(something like that).
this only started after i did clean installation of win 7 64 over my vista i got with the laptop.
when i check my event viewer i also see another error which its source is amdkmdag . and when i click on it so under "general" tab it says "display is not active".
if any1 could help me out , ahhh its really bugging me :/

p.s
the drivers i installed through system updates tool...

 

Install http://support.microsoft.com/kb/975599

 

hey thanks for the help!
but it says there something about fingerprint biometric device, that causes the problem, and i dont have such device..
do you still think this solution applies to my situation?

 

It may or may not be, however I periodically received this error on my R61 until I installed that hotfix.

The hotfix actually updates the USB driver so I believe that it is related generically to some types of USB device initialization.