cant install new drivers

hey guys i need your help. it would be greatly appreciated.

on my personal computer i cant install new drivers to my nvidia card. it's kinda hard to explain. i can install the drivers, but upon restart, when windows is loading up i get a blank black screen before my logon comes up. it wont load after that. any ideas? i'm lost. :blackeye:

i've tried everything from disabling my firewall, to installing in safemode, to running drivercleaners and restarting even after that.

Windows XP Professional
Support Information: (Service Pack 2)
Version: 5.1.2600 Service Pack 2
Intel Pentium 4 CPU 2.26Ghz
NVIDIA GeForce4 Ti 4200 with AGP8X
Asus P4SGX-MX Motherboard

thanks for any help!

Was your previous card ATI-based?

nope, i went through one of the same cards before, but this is the same model. nothing other than nvidia.