There's a new beta out of nHancer, which apparently addresses some important Forceware 185.xx issues.

But it's such a powerful and handy tool, even for the average guy. So another aspect of nHancer is to improve the handling of those profiles by adding many features that the normal control panel doesn't offer at all and improving the ones that it does offer.

Important notes - This version requires .NET 3.5! and ONLY works with drivers from the 185 series or those > than (e.g. 185.66/68, 186.xx, etc.)

Most important changes since 2.4.5:

• Switched to .NET 3.5
• Using the now officially documented NVAPI to detect nVidia cards,
  the installed driver and the current SLI configuration. This should now
  allow a very robust SLI detection.
• Added an elaborate new "Show GPU info" function\Added Ambient Occlusion options
• Adapted SLI Anti-Aliasing options to the current driver
• Replaced the deprecated "Forceware" name with "GeForce driver"
  throughout the project.
• Removed the support for all drivers older than 185.x. The result is
  a much cleaner code.
• Added new icons from Michael Wenz
• Updated all AntiAliasing compatibility flags descriptions to the
  current driver (185.68)
• Removed handling for pre-G80 cards. All cards are now treated the
  same.
• Removed workaround for the driver's incorrect handling of the
  "OpenGL driver extension limit" setting since the current driver does this
  correctly now. (Thanks to Michael for reporting that!).
• Bugfix: OpenGL games are now also affected when VSync is forced
  through nHancer (this bug must have been in nHancer since its inception...
  and nobody noticed it, including me... L ).
• Improved auto-import of profiles after a new driver has been
  installed. This should fix the reoccurring appearance of the auto-import
  window after nHancer's is started.

Download - click here