Windows 7: Nvidia 275.33 not compatible

I have to Asus PC, Asus VX2S and Asus G51J. VX2S is Windows 7 Ultimate 32 Bit and G51J Windows 7 Home 64bit.
Asus VX2S: No problem uppdate Nvidia 275.33
Asus G51J impossible to update after installing a new motherboard similar to previous = G60J. Before installing the new motherbord it was no problem update Nvidia. Now I receive that 275.33 is not compatible so I have still version 267.76.
Same Graphic: GTX 260 and same Intel i7 X920.

Does anyone understand this problem?

OEM versions of hardware and software are often configured differently to a retail version of them.

The OEM version won't have the same bells and whistles as the retail version and computer vendors use them because they're cheaper.

OEM Products

For OEM hardware I'd be inclined to use the computer vendors' updated drivers, for retail hardware the best place to go is the manufacturers' website.

Did you manually download the drivers? Is it possible you mixed up 32-bit and 64-bit versions?

OK seavixen 32. Your guess is probebly right. I had before chenage of modercard a license and now it a OEM from ASUS. I did manually download Nvidia from Nvidias site, so it is the 64-bit.
Yours
joanev.

You're very welcome. Don't forget, if you do get problems with an updated driver from whatever source, you can always go into Device Manager and roll back to the previous version.