Why does my monitor say "out of range?

when we turn the tv on why does it say pc analog out of range?

and just after it monitor gone black if restart also same problem .. but some time it works normal.. so can some one tell me what i do?

I am on a 18.5" monitor now, i wanna play my xbox so i have to switch my computer Vga cable to my Xbox Vga cable, im tried using my moms monitor (15") to use the computer on while i play the game. I plugged in my Vga cable and it says Frequency...

I've never had an LCD monitor and need help choosing one. Confused by information overload and conflicting information. I am looking for an LCD monitor around 22" (from 20-24" would be acceptable) and under $250, though honestly I'd be more...

Just today, when I booted up the computer, the monitor was set to a resolution of 800x600, although it normally is 1280x1024. When I tried to change it back to 1280x1024, I noticed there was only 4 options, rather than the six I had before. They were...

I made a dual boot Windows-Linux Suse 9.2 pc, and on lcd and a crt monitor it will never get past startup it wont display any graphics, the monitors just either go to sleep or they say signal out of range!. How to fix this so i can use linux again! Software...

Hello all im thinking of getting a HD Monitor for gaming i game on consoles for the most part but im not to good at knowing about the ms times and stuff i was wondering for those of you who have hd monitors does yours have any input lag at all? and also...