Strobelight - LightBoost Utility for AMD/ATI and NVIDIA

[torsionbar]

Hello everyone. I have a couple questions and hopefully someone can help me out.
Ill list my specs first
3 vg248qe monitors
2 via mini display port to display port on monitor
1 via duel link dvi cable
1 60hz monitor via hdmi to dvi 4th monitor in extended mode
msi 7970

Ive been able to install the app and install the different refresh rates.
I only play iracing and rfactor. My pc is powerful enough to maintain 120fps with lowered setting easily in rfactor. Both games have options for 120hz.
first of all, are my connections capable of pushing 120hz to the monitors via the display port?
Will the 60hz monitor in extended mode cause problems while gaming? I use the monitor for teamspeak and other non gaming apps.

My problem is that when i race on rfactor it seems to be smooth for a few moments and then i see, hard to describe. its almost like I am seeing the frame twice. like there is two frames overlapped but there not lined up perfectly. This becomes very annoying trying to race with it jumping back and forth. I can monitor the frame rates and im staying well above 120. That is the best i can describe the problem. Ive tried to force 120hz with radeon pro but its the same. Thanks for any help.