Hello
Very often when either wii mote lost connection by timeout and after i try reconnect it , just click A button, emulator show dump error. it is so irritate :(

it is actually only for sega emulator

Check this: [code.google.com]

It's actually an HBC bug that happens when your Wii is not connected to network. Solution is in the link above. Does anyone know if this is ever going to be fixed ?
Does not happen if you launch emu from forwarder channel, only from homebrew channel.