I have today downloaded and installed version 1.54 from via http://zorro-trader.com/download.php
I have also downnloaded and installed both M1 forex history files (2002-2009, 2010-2015)
I can test Workshop 4_1 with EURUSD without problems

BUT

by Workshop 4_2 I got 055 error: no EURUSD prices

See please screenshot: https://drive.google.com/file/d/0B4GY0818fQXPRTB5Vlpuem5tZ00/view?usp=sharing
Any help please? I am beginner and do not want to give up here...
In summary: Both Workshop 4 testet with EURUSD. By 4_1 test OK, by 4_2 it tells me no EURUSD data.