I think the time has come to sell my Nook and to give up on B&N altogether. So far I was reluctant to do it, because my Nook was the only reader over 7'' I had, and the contrast was very good even without full refresh. But one of the recent updates really f-d up the contrast. The text is now grey instead of black, and even hopping between books doesn't help anymore. I know they released a supposed fix for the grey font issue, but either I haven't gotten it or it just didn't fix anything, because my text is still grey with both default fonts and the publisher option, and no amount of tinkering has changed this. I've gotten at least two updates after the grey font one, so I'm really at my wit's end now. And furious.
I'm not going to bother with downgrading. I'll just sell it. Big thumbs-down, B&N.
Sorry for venting in the new Nook thread. I apologize.