I reccomend updating your graphics drivers,
To do this first open device manager
Next go to video drivers
Right click on your graphics drivers and click update. ( I'm not sure if this bit is exactly right because I don't have a computer at hand but it should be easy enough to guess what I meant)
Note: I can't see the wrong resolution causing this problem
That would be more likely to just make it very slow or make it crash by taking too much physical memory