Not getting any interpolation/hardware acceleration since upgrading

Ever since upgrading to Windows 7 from XP I've been getting blocky, non-interpolated image/video resizing in just about every application. To top it off, the section to change this option in advanced display settings is greyed out. I also noticed the new windows photo viewer has gone 20 years forward into the past by featuring only point sampling.
Is there a way to fix this?

Have you installed the correct drivers for Windows 7? Without knowing anything else about your system all we can do is speculate. Also did you ensure that your system is compatible with 7?

Yes, I downloaded and installed the latest NVIDIA drivers for my 9500GT video card. I'll produce any requested info about my system. Thx.

Also did you ensure that your system is compatible with 7?

"System"? I'm using windows 7 as we speak. If my computer wasn't compatible wouldn't it not work at all? It's an i7 computer from 2010 so I'm pretty sure it is.

Try using drivers from the card's manufacturer.

townsbg said:

Try using drivers from the card's manufacturer.

I don't understand. Who is NVIDIA's manufacturer?

nVidia only produces the chips. Other manufacturers use the chips to create their cards.

Oh, how do I find this out?

Look at the box. I'll say the manufacturer.

What box?

The box your card would have come it. Not sure how to help you find the manufacturer if you don't have the box or know what it is.