If anyone like me was struggling to figure out solo mining DRK then the following is a rough guide using Windows and sgminer -

Example Darkcoin.conf file for solo -

rpcuser=username
rpcpassword=password
rpcallowip=127.0.0.1
rpcport=1234
gen=0
server=1
addnode=23.23.186.131
addnode=50.16.206.102
addnode=50.19.116.123
addnode=98.165.130.67
addnode=54.242.50.205
addnode=50.17.98.53
addnode=54.225.43.37

Example settings for sgminer -

sgminer.exe --kernel darkcoin -o http://127.0.0.1:1234 -u -p --no-adl -I 11 -g 2 -w 64 --shaders 512

These settings are for my graphics card which is a rubbish ATI Radeon HD7730 - I get on average 250-300 Kh/s with this setup so change the graphics settings on the end to suit your card.

Use https://litecoin.info/Mining_hardware_comparison if you do not know the settings your card should use.

I apologise if this has already been posted but 193 pages of posts is a lot to check through . Just trying to help out.