Manufactured by: SONY 
Laptop Model: VGN-SZ3XWP/C
Graphics :NVIDIA GEFORCE GO 7400
Problem :cannot switch from stamina to speed mode no light indicator and nvidiageforce7400 don't work(Pics Attached)
Details :
I am having problem with my sony vio sz3xwp/c where when ever i try to switch from stemina to speed mode the light indicator for speed mode dosnt switch on also the nvidiagforce7400 card donot work as i cant see it even in the display adapters ,i was using windows xp professional ist and was having same problem and now i am using windows 7 Ultimate 32 Bit Hardware diagonostic tells video1 and video 2 have no problems but windows cannot deduct NVidia GForce 7400 Card on my Computer no matter i restart computer on stemina Mode or Speed Mode nothing change can any one tell me please where the problem might be help will be much appreciated thanx
Things Already tried :
Installing drivers from sony websites and installing original driver from Nvidia website , the error i recieve while installing driver is "The Nvidia setup programme could not locate any drivers compatible with your current hardware setup will now exit " a pic also attached showing problem
My mood : Totally

HELP NEEDED AS URGENT AS POSSIBLE PLZZZZZZZZZZ

Laptop Model: VGN-SZ3XWP/C
Graphics :NVIDIA GEFORCE GO 7400
Problem :cannot switch from stamina to speed mode no light indicator and nvidiageforce7400 don't work(Pics Attached)
Details :
I am having problem with my sony vio sz3xwp/c where when ever i try to switch from stemina to speed mode the light indicator for speed mode dosnt switch on also the nvidiagforce7400 card donot work as i cant see it even in the display adapters ,i was using windows xp professional ist and was having same problem and now i am using windows 7 Ultimate 32 Bit Hardware diagonostic tells video1 and video 2 have no problems but windows cannot deduct NVidia GForce 7400 Card on my Computer no matter i restart computer on stemina Mode or Speed Mode nothing change can any one tell me please where the problem might be help will be much appreciated thanx
Things Already tried :
Installing drivers from sony websites and installing original driver from Nvidia website , the error i recieve while installing driver is "The Nvidia setup programme could not locate any drivers compatible with your current hardware setup will now exit " a pic also attached showing problem
My mood : Totally

HELP NEEDED AS URGENT AS POSSIBLE PLZZZZZZZZZZ
Attachments
My Computer
At a glance
windows 7
- OS
- windows 7