Sounds like the monitor isn't capable of displaying a 1920x1440 resolution, hence the out of range error.
There is no way to go beyond your monitors native resolution, which can vary from monitor to monitor.
The nest thing you can do is find your monitors native resolution (typically the largest) and leave it at that.
Also another thing to check, the refresh rate, which will usually be at 59-60Hz for a typical monitor, no need to make it any higher than that.
3D capable monitors use a 120Hz refresh rate.