I made more tests and I think it's a bug related to the BFG Miner autostart checkbox:
- if I tick the BFG Miner autostart checkbox, when I launch MacMiner both BFG Miner and CPU Miner are started;
- if I untick the BFG Miner autostart checkbox, when I launch MacMiner neither BFG Miner or CPU Miner are started.
Can you reproduce the issue?