Here we go...

Bought COD4, install it, ran it and it ran fine except video card was inadequate.

Went out bought a ATI HD2400, install it, uninstalled COD4 and re-installed it.

Now during SP - audio during intro videos skips and load time (NPG for instance) way in excess of 1/2 hour.

BTW - Updated all drivers, ran a defrag, ran spyware, ran virus checker, performance tested the CD/DVD

Here is edited info from DxDiag:

OS: Windows XP Home Edition (5.1, Build 2600) Service Pack 2
System: HP Pavilion a1410y
BIOS: 08/17/2006 Ver: 08.00.12
Processor: Intel(R) Celeron(R) D CPU 3.33GHz
Memory: 1472MB RAM
Page File: 751MB used, 1242MB available
DirectX Version: DirectX 9.0c (4.09.0000.0904)

Card name: ATI Radeon HD 2400 Series
Display Memory: 256.0 MB
Current Mode: 1024 x 768 (32 bit) (60Hz)
Driver Version: 6.14.0010.6844 (English)

Sound: Realtek HD Audio rear output
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS_103C2A47& REV_1000

CD/DVD: LITE-ON COMBO SOHC-4836K
Driver: c:\windows\system32\drivers\cdrom.sys, 5.01.2600.2180 (English), 8/3/2004 22:00:00, 49536 bytes