Hint No Signal!!?!?

[MantisCSS]

basicaly, ive got my PC plugged into a 42" TV, it lets me on desktop and everythign fine, btu when i try to go in game, eg counterstrike source the screen goes blank and says HINT No Signal, untill i press alt tab and it lets me back in game. can anyone suggest why?

[Funkstar]

resolution or refresh rate of the game is outside what the TV will accept i think.

What TV is it? What resolution and refresh rates does it handle? etc.

[MantisCSS]

its a sharp aquos 42", it lets me play single player halflife 2 fine though? but just says hint no signal when i try mulitiplayer.

[Clunk]

im having the same thing on mine, on NFSMW i can get to the menus and settings but as soon as i change the resolution and try and enter the game i get a black screen. i have been reading up on this and i found a little add on that lets you set a custom res before you start the game, but the tv is very fussy. 1360x768 works great for windows via vga. unfortunately my telly wont accept any decent resolutions over hdmi so i think ill have to find something else to play. scrabble.

[MantisCSS]

lol, i just dont get it! its soo weird, it lets me in single plaayer half life 2 but not source multiplayer :S sooooooo anoying!!!