Video upgrade issues

Hey Everyone,

Got a bit of a problem here with a laptop video card upgrade. I have an acer 5739g and I'm upgrading from a GT 130m to a GTS 250m. Ended up getting the 250m for a pretty good price but the seller did not mention it was an engineering release (shows on bootup with video bios information). The card is in and works as far as the video is concerned however windows will not recognize it as an nvidia 250m but rather a standard vga card. The video bios on bootup however does confirm its a GT215 (GTS 250m). I'm going to try to work with the seller to get something figured out...but in the meantime was hoping to try and make this work. My first thought is that perhaps the engineering bios on the video card is somehow locking it out from regular use. I'm thinking that if i could find a comptatable bios I can try and flash it to a normal 250m bios. Problem is that I dont know where to get at this bios update. Anyone have any ideas?

Thanks,
Tim.

 

Hope you don't mind this question: Did you uninstall the old drivers before the upgrade and correctly install the driver for the new card after the upgrade?