Jon, I have a PAL Mallincam so maybe it's a PAL vs NTSC difference. I connect the Mallincam via S-Video to a TheImagingSource video converter box which outputs 768x576 uncompressed video via firewire to the ICCapture software that comes with the converter. My images above are individual frames from the captured video.
Gavin
-------------------- 14" LX200R + SV90T + AP1200GTO
31mm, 22mm, 17mm Naglers, 13mm Ethos, 10mm Pentax XW, 2X Powermate, AP MaxBright
Mallincam Hyper Plus Color, DFG/1394 video converter, Optec 0.33 & 0.7 FRs
IDAS LPS, DGM NPB & OIII, Lumicon Deep Sky