monochrome signal HELP

[AlD]

I need help. Just bought a cheap VCR/DVD combo. Tried to hook up to my BenQ PB 6100 using S Video, but can only get a monochrome (black and white) signal. Works fine with component video but not with S Video. Funny signal pojected on screen says "Monochrome 60 HZ). Anyone able to help me.

Thanks,

Al