HDMI issue on XFX 6970

so i need help this small problem that iv encountered after receiving my computer back from my tech guy that just put in a new ssd and network card for me. I have an eyefinity setup on 3 asus VS247H-P on a xfx 6970 card, sabertooth 990FX, Basically the problem iv narrowed down to is the hdmi port isn't working properly, the resolution on the one screen of the 3 is smaller and doesnt fill the entire screen. I never had this problem before and don't know if its a driver problem, hardware problem, software etc. all the monitors are on the same resolution with 5760x1080. Its definitely just the hdmi port on it because iv tested other monitors different cables and just 1 monitor by itself and still the same. The only way i can get that one hdmi screen to go full screen is if i lower the resolution but then it messes with the total resolution when i have eyefinity setup. Im buying a second active mini display port adapter as that is the only port i could use for a 3rd screen to test if the hdmi port itself is the problem. Any help would be appreciated