Questions about CRT monitors, flat screen LCD displays, and video card issues

Hardware Software Storage Displays Laptops Internet The Web E-mail General		Display Questions: Why is monitor's screen blank when I start up my computer? I changed my monitor's color settings and can't see anything now. What should I do? How can I connect my computer to a TV or television screen? Why is my monitor's screen smaller than advertised? Why does a 20" flat screen display have a larger screen than a 20" CRT monitor? Can I hook up two computers to one display or monitor? If I hook up two monitors to my computer, can two people work on the system at the same time? Why is the picture on my monitor fuzzy? How many monitors can I hook up to my desktop computer? Why does my monitor display a "Sync. Out of Range" error message?