NEED HELP!!! NVidia Driver & Windows XP SP-1 update

Yesterday my computer was fine. Last night I got a pop-up
notice about Windows having updates to install (auto-
update for XP SP-1). I went ahead and did the install,
now my graphics are messed up. When I went into my
Display settings, the only choice I have is "Lowest - 4
bit". I went to the Nvidia website to download the Nvidia
GeForce 2 MX 100/200 driver, but when I try to install it,
I get a pop-up indicating that it has not passed Windows
Logo Testing.

What can I do? I can barely see the graphics on my
computer. Is this an XP issue, or a MS issue (since it
was their SP-1 that created the trouble), or an Nvidia
issue? Any way, I just want to use my computer again.

P.S. No, I didn't make a back up...yes, I learned my
lesson. I have never had any trouble with auto-updates in
the past. I guess I figured if they come from MS, they
must be correct.