Potplayer Problem Connecting

[DaveT]

Hello
New To Forum.
OS Windows 7 Pro 64 bit. I have installed the Diamond VC500.
Old Panasonic 4 Head VCR. RCA Cables.
It worked with EZGrabber but I wanted to Try Potplayer.
I Can not Connect to Potplayer. No Video on screen.
Potplayer seem Good but Complex and no help File.
Searched web no Help found. Most info was just on Playing
Videos not on VHS Capture. Any Advice would be
Appreciated
DaveT