Is there a calculator for Cryptonite available? Doesn't seem that whattomine is anywhere close to correct.
Calculator: when suprnova works, you can take its estimate and divide by two. Or, you can make a simple calculation: take your hashrate and divide by the net hashrate; a block of about 200 xcn of award is generated every minute, you will take your share of that, but you must take into account about half because of orphans and failed submissions.
Failsafe solo mining: ccminer doesn't support backup pools. If you know some scripting you can manage some crude form of automatic backup.
The qt wallet should close in some seconds.
No wonder calcs are off big time. (should be fine for solo excluding orphans though) - happy to hear your experience