Asus has posted the follow new bios updates:
Bios CUV4X 1009 - 05 BetaDownload
Bios CUV4X-C 1007 - 04 Beta
Bios CUV4X-E with OnBoard Audio 1003 - 06 Beta
Bios CUV4X-E(A) without OnBoard Audio 1004 - 06 Beta
Bios CUV4X-M 1007 - 07 Beta
Bios CUV4X-ME 1002 - 07 Beta
Bios CUV4X-LS 1004 - 04 Beta