pci simple com controller mass storage controller drive

HI,
Each time I boot into build 5384 I am prompted by the New Hardware Wizard to install the following
Mass Storage Controller PCI Simple Communication Controller
I've checked my install discs but I can't find these two drivers. Based on my system specs from DXDiag below, can anyone give me an idea what to try?
Time of this report: 7/22/2006, 16:41:55 Operating System: Windows Vista™ Ultimate (6.0, Build 5384) (5384.winmain_beta2.060518-1455) Language: English (Regional Setting: English) System Manufacturer: MICRO-STAR INTERNATIONAL CO., LTD System Model: MS-7100 BIOS: Phoenix - AwardBIOS v6.00PG Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ (2 CPUs) Memory: 2046MB RAM DirectX Version: DirectX 10
Drive: D: Model: SONY DVD RW DW-G120A ATA Device Driver: v:\windows\system32\drivers\cdrom.sys, 6.00.5384.0004 (English), 5/18/2006 21:16:28, 61952 bytes
Drive: E: Model: LITE-ON DVD SOHD-16P9S ATA Device Driver: v:\windows\system32\drivers\cdrom.sys, 6.00.5384.0004 (English), 5/18/2006 21:16:28, 61952 bytes
Name: PCI Simple Communications Controller Device ID: PCI\VEN_14F1&DEV_1066&SUBSYS_4033122D&REV_08\4&13699180&0&3848 Driver: n/a
Name: Mass Storage Controller Device ID: PCI\VEN_1095&DEV_3132&SUBSYS_710A1462&REV_01\4&14AECDB0&0&0060 Driver: n/a