Hello all. I am new to the forum, but this seems like the best place I can get the information I need or help on this matter. I have 2 HIS HD3870's installed on a ASUS Maximus formula mobo. My driver version for the 3870's is 8.453.0.0 for each card, I have ATI CCC version 8.2 installed, all on Vista Home Premium 64bit OS. In CCC I have crossfire enabled, but when I check it in GPU-Z version 0.1.6 it is showing disabled. I have checked everything possible to get it to actually enable crossfire on my system, but to no avail. If you need any other info on my system just let me know.