For anyone that has reflashed to the dual boot from a Linux box - how long after clicking the download button did it take to start? I've got the scatter file loaded up, clicked the Download button, seem some output back in the console window that seems to indicate the Gemini has been found but then nothing. Tailing the flashtool logs doesn't really seem to give any clues either.
Also 5.1752.00 seem to be the latest Linux version I can find, 5.1804 is Windows only from what I've been able to find.