Ive gone to the control panel and display but it will not let me change the resolution of my computer.

at first,as mailpup said- check,do you have drivers. you can go like this: Start->run->dxdiag->Display (it will show what driver currently is installed(main driver version,date and all about your graphic card.). If you have the driver,download the new,uninstall old version,reboot your pc,and install the new driver again. Depending on your graphic card,maybe you have the VGA and HDMI connector at the back of your graphic card. If you'r using VGA connector,try to use HDMI. It will require a reducer(which should have come with your graphic card). It would be great,if you would told,what graphic card you have,and what OS... you also did't said- your graphic card is integrated,or on AGP/PCI-E slot?

When you've bought your PC and if it included a driver CD, install the driver from the CD, This should fic your problem.

WinXPert- mostly all the drivers who cames with CD is out of date(including chipset,lan and sound card drivers). That's why manufacturers makes updates. CD can't update itself. Graphic card drivers are being updated after 3weeks or at least once ir 3 months,so the drivers in CD may be old,if this dude plays some of the new games(like NFS:Shift)

Assuming that you actually went to Display in the Control Panel, then to settings, and could not change the screen resolution or use Identity, Troubleshoot, or Advanced, either your driver is corrupt or your video graphics card is defective. Even an old driver set should work, or be adjustable in the settings screen if it is working.