VIDEO CAPTURING

VIDEO CAPTURING
I bought a video editing card from VCD PRODUCER PRO so that i could download music and movies from my DSTV DECODER directly to my computer. I installed the card and connected the V-Out from the decoder to the V-In of my card and clearly specified in the hardware capture softare (AP) that the source was V-In 1, i then connected the other 2 Audios in the Audio In of the card. My captured picture is very unstable, moving up and down and eventually getting lost, i have tried changing the settings i.e from PAL I TO PAL M TO NTSC and the like but still it is not clear, could it be the cables since am using home made ones or what.