ATI RADEON XPRESS 200M to TV goes greyscale

[FunestoLeClown]

OS: WinXP
Video card: ATI RADEON XPRESS 200M (7-pin female)
PC: Compaq Presario (laptop)
TV: JVC (4-pin female)

Ascii picture of the connection used
7-pinF<<4-pinM------------4-pinM>>4-pinF
PC CABLE TV

Problem encountered: greyscale display on TV

Please, help! Why don't colors display?

Thanks.