6800 SLI Windows 7 Issue

I have 2 6800GT's in my system. Windows 7 x64 build 7600 detects them both, but in the Nvidia Control panel I don't even get the option to enable SLI. I've tried the same in windows 7 32-bit Build 7201 to no avail. SLI works perfectly in Windows XP. I am using 186.18 drivers. Any Help is appreciated.

Athlon 64 x2 3800+
Biostar Tforce4 SLI
Geforce 6800GT x2
2gb DDR 400
80gb Hard Drive
Nvidia 186.18 Drivers

I have the same exact situation. I don't get the option to enable SLI

works fine in XP

Please comment if you know why?

Rich