Can anyone explain to me why I put about 4.2-4.5Mh/s, but middlecoin is only showing 3.5-3.6Mh/s? It's been running for a couple hours now :\
You could have high reject rates...
Or... hit F5 to refresh browser after you open all user stats.
Or... click on your payout link if you have been paid at least once already.