Windows 7: nvidia isn't installing latest driver

Hai friends,
I am using HP Pavilion dv6-7012tx with 2gb nvidia geforce gt630m graphics card.My driver version is 295.55.Recently when I checked for driver update in nvidia control panel it showed that version 301.42 is available & the nvidia website also showed that update is available for my graphics card.I downloaded it & when I started installation it said-"this graphics driver could not find compatible graphics hardware".
Why is it so?

Mate you come on this page ... Drivers - Download NVIDIA Drivers

Opt for Option 2: Automatically find drivers for my NVIDIA products. You may need to install the latest version of Java to run this check (if needed, it will be done automatically in the process). If your GPU is compatible, it will point you out the appropriate one for your system.

Thanks a lot mate.The site said I have latest driver installed.

Then why did the nvidia control panel showed that new version is available?

That place is reliable. As it is saying that your driver is the latest one, dont worry then.

(At least as far as the system working properly )

hai friends,
now nvidia control panel shows that a new driver update is availabl for my graphics card & when I went to nvidia site & selected automatic checking for driver update it showed that update is available.
Should I download the update?

Update it!