Unknown display card issue

yesterday my display suddenly became 8 tiles with 800 x 480 resolution in each...
i've googled on the web and found that that's nvidia standard problem...
that drives me crazy...it happens wherever my screen is on...even on the bios screen...
how can i solve it ?

my laptops' specs :
model : lenovo 3000 y410
os : windows vista home premium sp2
gpu : nvidia grforce 8400m gs
cpu : intel core 2 duo t7250 @ 2.00ghz
monitor : 14.1" wxga vibrant view
ram : 2gb ddr2
vram : 128mb
hdd : 5400rpm 2.5"
 
Have you got the latest driver for your card?

Go directly to the Nvidia site

http://www.nvidia.co.uk/Download/index.aspx?lang=en-uk

Put in your card details and operating system and hit search. Download the driver and save it to your desktop.

Go into Device Manager and locate the card. Right click on the card and select Properties, under the Driver tab select Uninstall and then exit.

Double click on the new driver on your desktop and it will install.

The latest driver is dated January 2011 so hope this helps.
 
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