Screen Flickers with 2 Display Adapters

[mobilekmichaels]

I wasn't receiving any problems when I was using one display link usb 3.0 to hdmi adapter but when I added another one to the mix I started experiencing my screens going blank for 2 seconds then turning back on every couple of minutes. I'm guessing that is called a screen flicker but I'm not sure. Everything else works fine but this keeps happening at random times. I am currently running a pci-e usb 3.0 adapter card which currently has the two adapters plugged in each of the two available slots. I believe the drivers for this card are the most recent but I'm not sure. I am running windows 7 64 bit without sp1 and the latest drivers for display link. The display adapter is a Uspeed USB 3.0 to HDMI adapter which can be found on amazon. I am running one monitor in the middle which is the primary and one and a 17 in on top of that on the onboard graphics. The two adapters are powering 2 22'' monitors that are on the sides of the primary display. Any thoughts on what could be causing the "screen flickering"? Any help would be great, thanks in advance.