I can't use windows 8 features with my new 04G-P4-3776-KR. I had to turn them off in my bios to get my computer to boot to windows. I now have the "SecureBoot isn't configured correctly" watermark. I just got it removed when I had to update the bios for my GTX680. Does the GTX770 need a new bios for this feature work in Win 8.1. I just installed my new GTX770 today.