Screen stops working in call of duty black ops!

Computer Type: PC/Desktop
System Manufacturer/Model Number: Maingear Custom PC
OS: Windows 7 Pro
CPU: Intel Core i7 2600k @4.6Ghz
Motherboard: Gigabyte GA-Z68X-UD4-B3
Memory: 16 GB DDR3 1600mhz
Graphics Card: EVGA GTX 980Ti
Sound Card: Onboard
Monitor(s) Displays: Curved MSI 144hz 1ms
Screen Resolution: 1920x1080
Keyboard: Basic Wireless Keyboard
Mouse: Basic Wireless Mouse
PSU: Seasonic 650 Watts Gold Rating
Case: Custom Maingear Case
Cooling: 60mm Maingear Liquid Cooling CPU
Hard Drives: 250GB Samsung 860 Evo SSD
Browser: Google Chrome (Latest Version)
Antivirus: Microsoft Security Essentials