I have a problem with hardware when playing Nascar 4.
I get realy poor frame rates when playing Nascar 4 (2 - 15 fps)
I have tried: Reinstalling XP
Up dating Video Drivers
Replaced RAM
Used the latest drivers for all of my hardware
Replaced the Sound Card
Replaced Hard Drives
Replaced Video Card
Note some of this was due to updating my system but could not fix the problem.
However I did find one solution which is useless. This being disable the sound card. I then get 25 - 65 fps.

System: Abit SA6R Intel I815 E Chipset
Apon 300 watt full tower
Intel Pentium III 1Ghz
128 x 2 mg Hyundai PC 133 SDRAM
GeForce 3 Ti200 64mg DDR AGP
Sound Blaster Value Live PCI
Surecom 100BaseT NIC PCI
ATA100 Raid onboard (HiPoint 370)
Western Digital 40Gig ATA 100 7200 Primary Raid Master
Western Digital 40Gig ATA 100 7200 Primary Raid Slave
Quantun 5Gig ATA33 Secondary Raid Master
Quantun 5Gig ATA33 Secondary Raid Slave
Western Digital 20Gig ATA 66 7200 Primary Intel Master
Poineer DVD 106 DVD Rom ATA 66 Secondary Intel Master
Latest SBLive Drivers
nVidia 21.83 Drivers
Default DirectX for XP
Onboard Sound, Video and Modem optoins diabled in bios
Memory set to bios defaults
Raid set as boot device after floppy
AGP set to default in bios
Note there is no video card bios displayed on boot up
Monitor set to 1024 X 768 at 85Hz

I emailed the video card vendor SPARKLE and they were yapping on about installing the motherboard agp vxd driver and for me to contact Abit for the .VXD Driver?
To my knowledge my installation of XP has only one .VXD (dsound.vxd) and the nVidia drives for XP do not have any .VXD in the installation files.

Anybody got any better ideas.

Solved the problem
Promblem is with Windows XP DirectX
When multiple voices is enabled in NASCAR 4 the frame rate drops dramatically, this does not happen in Windows ME with either DirectX 8 or 8.1

Well, the version of DirectX included in WinXP (8.1) is the same version that you can download and install under Win2k/ME/98.
What happens if you run the game in Compatability Mode?

The DirectX version might be the same but can you install Win2K DirectX in to WinME and visa versa.

System: Abit SA6R Intel I815 E Chipset
Apon 300 watt full tower
Intel Pentium III 1Ghz
256 x 2 mg Hyundai PC 133 SDRAM
GeForce 3 Ti200 64mg DDR AGP
Sound Blaster Value Live PCI
Surecom 100BaseT NIC PCI
ATA100 Raid onboard (HiPoint 370)
Western Digital 40Gig ATA 100 7200 Primary Raid Master
Western Digital 40Gig ATA 100 7200 Primary Raid Slave
Quantun 5Gig ATA33 Secondary Raid Master
Quantun 5Gig ATA33 Secondary Raid Slave
Western Digital 20Gig ATA 66 7200 Primary Intel Master
Sony CD-RW CRX175E ATA 100 Secondary Intel Master
Poineer DVD 106 DVD Rom ATA 100 Secondary Intel Slave

Sorry but it is not DirectX. I'v got a Geforce3 and a SB Audigy and Nascar 4 runs super fast. I know for a fact its the Sound card because philips, Herc, and a old SB live. When the SB live is in everything goes slow. The others work great.

"The DirectX version might be the same but can you install Win2K DirectX in to WinME and visa versa"

Can you install the WinXP NVidia Drivers under WinME and vice-versa?
Of course the actual installation packages are different for each OS (An obvious difference in the Win2k package over the WinME one would be c:\winnt rather than c:\windows).
However the actual package (DirectX) is the same accross platform - the whole idea of a 'standard API'.

I have a dual boot system running WinME and WinXP. When playing NASCAR 4 in WINME with the sound option turned up full I have no frame rate problems but using the same settings in WINXP I have bad frame rate problems. So from this you would think that the problem lies software and not hardware then?