I'm experiencing the same thing. Model Athlon 64 4000+ with device ID "ACPI\AUTHENTICAMD_-_X86_FAMILY_15_MODEL_39\_0" Although it does'nt bother me as I never use the drivers that ship on the XP CD. AMD have newer drivers available off of their website. Run their installer and bingo, problem solved. You could then unpack the driver from it's installer and intergrate it in your future builds. Or alternatively you could intergrate the CPU Driver Pack (Which only has the AMD K8 driver anyway) from driverpacks.net to work-around the problem.
