Unable to activate 3 screens anymore

[redisdead]

So here's my setup.

I have some identical 42" LG TVs running on a 7970

one is plugged on a HDMI port, the other on a DVI>HDMI adapter, and the last one on a MiniDP->DVI->HDMI adapters. It is an active adapter.

Running the 13.11 beta drivers I was able to do eyefinity on my 3 screens and game happily on my 64 bit Windows 8.1

For some reason I decided to upgrade to 13.12, and I couldn't create a 3 screen eyefinity, or heck, just even enable all of them in extended mode. So I uninstalled the drivers and put the 13.11 back and I still can't activate more than 2 screens simultaneously.

I tried swapping the MiniDP->DVI adapter with another active one, I tried swapping screens around, no dice.

This is somewhat infuriating because everything used to work like 2 hours ago.

Help plz

EDIT: more details

[Haldi]

did you use the DisplayDriverUninstallerto go back?
If yes, then you would need to install an even older driver and overinstall the newer 13.11 to get it working again.

You COULD try using windows backup function, i think that thing makes a backup everytime you install some new drivers