So, I was playing an old game (CnC Generals) and when I quit the game, the sides of my monitor are now just black and unused (about 3-*4 inches on either side). I've restarted the computer, unplugged the monitor (which is plugged in HDMI), uninstalled/reinstalled the drivers for the graphics card and am now at a loss of what to do and am wondering if my graphics card hasn't died. Everything was fine before hand-nothing changed or added in over a year. Any ideas on what to try next?
Windows 8.1 64bit
Nvidia Geforce GTX550Ti graphics card
27" Hyundai monitor
Thanks in advance for any help!