Two bugs: 1. ntemacs will show the following warning message when starting up.
Emergency (alloc): Warning: past 85% of memory limit
2. There are lots of noisy points on the screen when you trigger Ctrl-H i. (screenshot attached). I have tried font: Consolas, Monaco. It's much more noticeable if you are using
Monaco(http://www.gringod.com/wp-upload/MONACO.TTF).