Error DirectX function GetDeviceRemovedReasonfailed with DXGI_ERROR_DEVICE_HUNG

Hello, 

I receive the following error when playing BF3 multiplayer for about 30min. 

DirectX function "GetDeviceRemovedReason" failed with
DXGI_ERROR_DEVICE_HUNG: Device hung due to badly formed
commands.. GPU: "AMD Radeon HD 7900 Series", Driver: 13.4 
(12.104-130328A-155980C-ATI) 

My system specs: 
i7 2600k oc'd to 4.3ghz
8gb ram  
MSI R7970 Lightning with the latest non-beta ATI drivers

WIndows 7 Ultimate - 64x

I tried a lot to solve this problem, unfortunately without result. I love this game, that's why I bought it. I want to play multiplayer.

1. tried all drivers from ATI - including very old and beta drivers

2. Updated / repaired / fixed DIrectX

3. Reinstalled windows (!)

4. After gamecrash with this error I repaired the game- and reinstalled it.

5.  Battlelog login via Chrome only

6. Google search on this error. I found lotsof sites where BF3 players stating this exact problem. However nobody knows what is causing this problem, and how to fix it. 

None of the above helps to resolve this serious issue, which only occurs when playing BF3.   Please help us!

Thank you

Regards,

A BATTLEFIELD FAN