The problem with hang-ups in Athlon/Duron/Win2K environment due to AGP implementation anomalies (regardless of chipset) have been resolved.
You can get the fix at www.amd.com/products/cpg/athlon-duron/amd_win2k_patch.html
You can get the fix at www.amd.com/products/cpg/athlon-duron/amd_win2k_patch.html