Digital BW, The Print

I got Paul's sample paper pack from inksupply.com, and I'm making several prints on 
different papers.  All of them work fine... except for Photo Rag.  The printer just won't take it 
- I get a "paper not loaded correctly" message every time.  I've even tried giving it a little 
nudge but when I do that the printer just passes it all the way through.

Has anyone else had this problem?  

All minor issues aside, I'm having a blast with this and I'm amazed at the quality of prints this 
$70 machine can produce.  A very sincere thank you to Paul and Clayton and everyone here 
who helped me understand the basics and get started.

Best,
Chris