best way to fix it is as ShadyHost said, use a DVI cable.
Or if you have to use HDMI then go in to CCC, then to the "my digital flat panels" tab and it is in the "Scaling Options"
Edit: I don't see how CCC would add any stability issues to your computer, but you could update your BIOS just to be on the safe side.
Also you have a 144hz monitor, what are you using HDMI for? you should use either DVI or Display port.