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. If each different algo uses a separate communication protocol, this may not be true. FeatherCoin (FTC) won't generate hash, I cannot get CCminer to communicate with the wallet at all. --scryptr