Why not try this handy little tool which changes the colour intensity of your screen according to where you are and the time of day.
During the day, computer screens look good—they're designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn't be looking at the sun.
f.lux makes your computer screen look like the room you're in, all the time. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again.
System Manufacturer/Model Number self built OS Windows 7 Professional 64-bit CPU Intel E8400 3GHz Motherboard Intel DX48BT2 Memory Kingston PC3-10700H 4Gb Graphics Card XFX Radeon HD 5850 BlackEd. Sound Card Asus Xonar DG Monitor(s) Displays 2x Samsung SM-T220HD 22" Screen Resolution 1680x1050 on two monitors
Keyboard Microsoft Comfort Curve USB Mouse Razer Diamondback 3G PSU Thermaltake ToughPower 850w Case Thermaltake Armor Cooling Scythe Mugen II Hard Drives OCZ Vertex 2 120gb 3.5" (OS)
Seagate Momentus XT 500gb
Samsung F3 1Tb (games)
2x Samsung F1 1Tb Internet Speed 8128/443
man, i really appreciate this..... I've been getting headaches at work right when I sit down at my workstation, which has three monitors. This thing works great. It relaxed my eyes a bit and i don't seam to get any more headaches. Great find!
System Manufacturer/Model Number LG R500 OS Windows 7 Ultimate 64x CPU Intel Core 2 Duo Mobile T5750 @ 2000 MHz Motherboard LG Electronics COLUMBIA Memory 3072 MB Graphics Card NVIDIA GeForce 8600M GS Sound Card Speakers (Realtek High Definition Audio) Monitor(s) Displays 15.4" WXGA with Fine Bright Technology Screen Resolution 12800 x 800