Can't seem to boot my Nook HD+ into clockwork mod

view story

http://forum.xda-developers.com – Hi guys, I just bought a Nook HD+. It has 2.0.6 installed on it. I'm trying to follow these instructions here: http://forum.xda-developers.com/show...7&postcount=10 I got to step 7, but it always boots into the Nook OS and never into the CWM. All the previous steps worked. I'm using a 64 GB Sandisk Class 10 card btw. Other posts seems to indicate this card should work. (HowTos)