Asmedia AND nvidia surround

[Stingray]

Dear gents,

yes, I know there is plenty of information around on these two problems, just all that posts are rather old and I followed every instruction without success.

Situation:
Upgraded my Win7 64-bit PC from single to three displays. They are fired by a GTX760 on driver 327.23 (the newer 332.21 has a software issue when connecting a HDMI device...don't ask ). They are on surround mode, I want to use it in flight sim. That works perfectly
In the OLD setup, I had a GTX560Ti on 306.95 drivers no problems on a single monitor.

I want to control three USB monitors (2x U70, 1x MIMO).

Problem: When I plug selected two monitors in, they run but force the surround to quit. Plugging in the third turns every screen black -> restart.

When I installed the latest Displaylink drivers/ software, I was told there was a problem with the Asmedia USB3.0 host controller. I updated to the latest version 1.16.12.0 - dunno whether the problem persists?!?

I disabled Aero...still nothing!

How could I possible get that stuff working?! It should theoretically...

Thx
stingray