This is the quest given by Trevor in the Merchant guild after my warrior becomes a member of the guild.(Of course, i think i can choose NOT to initiate this quest) Remained "broken"...

So, the whole thing goes like that:
I got the quest "Find the clues about wares" from Markus AFTER seeing the burning cart scene BUT WITHOUT showing the note dropped by an assassin in the hideout cave --> I failed to follow the blood trail <img src="/ubbthreads/images/graemlins/disagree.gif" alt="" />
And then, I got the above quest from Trevor and then went back (finally found...) to the hideout cave the kill those two assassins and GOT the note. However, the quest "To Rivertown" didn't show up. So, i just went to talk to Markus and Tingalf to get the quests like "Tingalf", "Nearby Depot" and "The Black Market Depot". And yes, i got "Find the suppliers for Tingalf" from Robin long, long ago...

Later on, I went down to the sewer and kill Pedro and got the note dropped by him and showed to Markus, Robin and Trevor... BUT there WASN'T any dialouge choices from Trevor which can solve the quets (grrr...) & I loaded the game and showed FIRST to Trevor the note (i.e. Tingalf still remained unlocked by Robin)and also nothing happened!

Anyone can help with this one? really appreciate your help!