1. Flash Swiss 0.3-r174 dol (swiss-compressed.dol) to the Qoob's internal memory.
2. Disconnect USB cable, insert SDGecko with SD card.
3 . Power up Gamecube, select swiss-compressed from applications menu.
3. Swiss starts and says "reading SD Card"
4. Exits briefly to the Swiss menu before displaying this:-

I left a bug report on the Swiss Google code page too but I don't know if anyone ever reads that. Does anyone know what I might be doing wrong?