Question Alienware 240hz monitor locked at 144hz now?

[mathewh]

I've been using the Alienware 240hz G-Sync monitor for probably around 2 years now no problems. I decided yesterday to move my setup up to my room rather than my basement, and after hooking everything up, the monitor won't go to 240hz anymore, and the highest it'll go is 144hz. I have it connected using a display port, and i've tried two different display port cables and neither resolved the problem. I also updated my drivers but still didn't help.

 

[mathewh]

Does anyone know how to resolve this?