MSI Afterburner problem with 2 Crossfired 6870s

[OgNasty]

EnableUnofficialOverclocking   = 1
UnofficialOverclockingEULA   = I confirm that I am aware of unofficial overclocking limitations and fully understand that MSI will not provide me any support on it
UnofficialOverclockingMode   = 2
AccessibilityCheckingPeriod   = 0

When I enter this code it freezes upon opening every time.  I'm trying to lower the memory speed.  I also tried a 1 in place of the EULA sentence.  Any ideas?  I'm assuming the reason it isn't working is because of crossfire.  Has anyone with a crossfired rig gotten afterburner to open in this mode?

[IlbiStarz]

Why are you using Crossfire? It slows down mining. If you are using it for gaming, lowering memory speed doesn't help that either. o.o

My Afterburner freezes too when I do this, I have a 6990 + 6870.

[OgNasty]

Why are you using Crossfire? It slows down mining. If you are using it for gaming, lowering memory speed doesn't help that either. o.o

My Afterburner freezes too when I do this, I have a 6990 + 6870.

I'm using Crossfire because the computer does more than mine for bitcoins...  I want to lower memory speed to reduce heat and save energy, nothing to do with hashing performance.