checkpoint is too old.....
you might want to join the forum and post it in the help section, the Devs don't come here much anymore, but very responsive over there
http://dmdcoin.net/forumthis is a big mistake taking dmd community off of this board. Many of the older coins made that same mistake DMD is a great coin, great name but needs new interest. I would bring it back on here asap.
One of the most undervalued coins right now. Good design, good dev , good name, fair release no scams. I like it.