Does anyone have a list of coins where soloing is known to be broken? Maybe one with low diff? 
SecureCoin (SRC) was suggested. It is a Quark coin. Another miner posted that it has the same error message on finding a block (crashing) as VertCoin (VTC). CCminer will generate Quark hash with SRC; SRC has very rapid blocks at low difficulty.
Currently, I do not think solo-mining will work with any algo using CCminer.
That's in part why I am rather unhappy about the situation. myself and other have busted our asses on ccminer while the most publicised version which mostly uses the code we developed gets broken on a daily basis, feature gets removed, not even possible to run in debug mod without recompiling etc...).
no offence sp, it is time you get your shit together and stop releasing 4 untested releases a day...
PRECISE--
OK, you have a point, DJ. I was posting in sp_'s thread, however. I DO try to be clear about OS, version, hash rates, clock rates, spelling and punctuation, etc. I've groaned about the bleeding edge speed before, myself, but sp_ has brought my 750ti cards from 5.5+ Mh/s to 6.1Mh/s mining Quark within the last 20 releases.
Maybe a few releases should focus on code clean-up and standardization rather than speed. Future improvements would then be on a stronger base. --scryptr