Maybe I should say I've not been able to solo mine on Quark algo since b54. I just tried b56, it just sits there doing nothing.... just like in your screenshot. B57 does not generate an error message for me, but it also just sits there doing nothing.
Solo mining is unlike pool mining you will not see any output like a pool gives in solo.
Only once you have found a block will it show any output, well you can use -P if you'd
like to see a little more info about what is happening in the background.
The Good The Bad and The Ugly
good: yay!!! bad: hash rate The Ugly: boooo
Only after a yay or booo does it start to give other readings in solo.
