I got my Nook Christmas of 2011 and it's worked perfectly this whole time. Today though, I went to turn it on to use it and the screen went mad. It split itself into three sections. One section displayed my screen saver, one displayed the logo, and the other displayed blank white. It was completely frozen on this and would do nothing. I plugged it in to see if it would do anything and it caused my screen to split into FOUR sections and all of them are varying amount of black and white. My Nook was at an 70% charge before this, and I can't fix it no matter what I do. Is there any way to totally reset it?
If you haven't already done it, try the ERP (Emergency Repair Protocol) first: Turn it completely off and restart it.