P4x400(OS-Vista) Via Drivers Not updating VIA Pci to agp controller??

[Muffet]

Ive installed the via update 4 in 1 with no problems trying to update the via chip PCI TO AGP CONTROLLER. I restart and go into device manager and the drivers are still windows drivers from 2006. New Windows installed 5 days ago with all updates. Trying to get New x1650 agp Video Card to work properly, upgrading from 128mg AIW 9600. I have poor performance with the NEW card. Moving windows around on the desktop ghosts. Updated bios as much as i can.

Installed older and newer ati drivers, NO DIFFERENCE. Seems that the via needs to update....

Ati Tech says to get new updates for via chips.
Any Ideas what i can do to get the via drivers to work or OVERRIDE THE WINDOWS DRIVER.

OR is my mobo just too old? Was hoping to upgrade little without buying new computer.

IS there a bios setting im missing?

OS Name Microsoft® Windows Vista™ Ultimate
Version 6.0.6000 Build 6000
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name
System Manufacturer VIA Technologies, Inc.
System Model P4X400-8235
System Type X86-based PC
Processor Intel(R) Pentium(R) 4 CPU 2.66GHz, 2659 Mhz, 1 Core(s), 1 Logical Processor(s)
BIOS Version/Date Phoenix Technologies, LTD 6.00 PG, 3/11/2003
SMBIOS Version 2.2
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.0.6000.20500"
User Name
Time Zone US Mountain Standard Time
Total Physical Memory 1,791.48 MB
Available Physical Memory 1.00 GB
Total Virtual Memory 3.72 GB
Available Virtual Memory 2.78 GB
Page File Space 2.04 GB
Page File C:\pagefile.sys

Thanks for your input in advance.