Buy one of these cables, plug it in, enjoy HD component out from your C31.
Note best results will be with:
C31 -component-> Slingbox -component-> TV
You'll still hit HDCP issues with:
TV <-HDMI- C31 -component-> Slingbox
Unless you leave your TV on when you want to watch HDCP-protected programming over the Slingbox.
I have a slingbox 500 and I'm connecting it to DirectTV through a C31-700 set top box.
There is no component audio/video of any kind on the back of the DirectTV box. In setting up the 500, it appears that without component connections it won't work with any HDCP content (which appears to be a fair amount of content).
How can I set this thing up with this configuration?