Controladora de video multimedia

Tras un problema que tuve de resolucion de pantalla, se me han desconfigurado unos drivers, que aparecen como interrogacion amarilla en el administrador de dispositivos, son la controladora de video y la de video multimedia. Intento reinstalarlos desde el CD de la placa base, pero no me deja, me dice que ya estan instalados y no me da mas opcion. He probado antes con: propiedades > controlador > desinstalar, pero nada. El Everest me da el siguiente informe:
--------[ EVEREST Corporate Edition ]-----------------------------------------------------------------------------------
Versión EVEREST v4.20.1170/es
Benchmark Module 2.3.212.0
Sitio Web http://www.lavalys.com/
Tipo de informe Asistente de informes
Ordenador MANUEL-58EF0FAF
Generador Manuel
Sistema operativo Microsoft Windows XP Home Edition 5.1.2600 (WinXP Retail)
Fecha 2008-03-04
Hora 21:28
--------[ Debug - PCI ]-------------------------------------------------------------------------------------------------
B00 D00 F00: VIA K8T800Pro Chipset - System Controller
Offset 00: 06 11 82 02 06 00 30 22 00 00 00 06 00 08 80 00
Offset 10: 08 00 00 A0 00 00 00 00 00 00 00 00 00 00 00 00
Offset 20: 00 00 00 00 00 00 00 00 00 00 00 00 06 11 82 02
Offset 30: 00 00 00 00 80 00 00 00 00 00 00 00 00 00 00 00
Offset 40: 7F 22 21 00 00 00 00 00 00 00 1F C4 00 04 00 01
Offset 50: 01 60 02 00 00 00 00 00 08 00 01 80 03 80 17 00
Offset 60: 08 58 60 00 20 00 11 11 D0 00 00 00 22 05 35 00
Offset 70: 02 00 00 00 00 00 00 00 00 00 00 00 08 00 00 00
Offset 80: 02 50 30 00 1B 0A 00 1F 12 03 00 00 28 00 00 00
Offset 90: 80 01 00 00 00 0E 01 00 00 00 00 00 00 00 00 00
Offset A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset B0: 00 00 00 00 00 00 00 00 00 40 00 00 06 08 00 CC
Offset C0: 51 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
B00 D00 F01: VIA K8T800Pro Chipset - ECC Controller
Offset 00: 06 11 82 12 06 00 00 02 00 00 00 06 00 00 00 00
Offset 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
B00 D00 F02: VIA K8T800Pro Chipset - Host Bus Interface
Offset 00: 06 11 82 22 06 00 00 02 00 00 00 06 00 00 00 00
Offset 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset A0: 13 0E 10 31 30 3C 80 86 7F CF 44 22 46 00 22 60
Offset B0: 3F 13 00 00 03 00 00 00 00 00 00 00 00 00 00 00
Offset C0: 20 00 00 00 50 50 00 00 00 00 00 00 00 00 00 00
Offset D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
B00 D00 F03: VIA K8T800Pro Chipset - DRAM Controller
Offset 00: 06 11 82 32 06 00 00 02 00 00 00 06 00 00 00 00
Offset 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 40: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00
Offset 50: 22 22 00 00 00 00 E4 00 00 00 00 00 00 00 00 00
Offset 60: 00 00 00 00 00 00 00 00 00 00 00 10 00 00 00 00
Offset 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 80: AA 0F 20 00 00 FF 19 00 00 00 00 00 00 00 00 00
Offset 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset A0: 00 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00
Offset B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
B00 D00 F04: VIA K8T800Pro Chipset - Power Management Controller
Offset 00: 06 11 82 42 06 00 00 02 00 00 00 06 00 00 00 00
Offset 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset A0: 80 00 FF 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Offset E0: 00 00 00 00 00 00 00 00 00 00 00 00 00...