I found this whilst searching the National Archives; http://www.nationalarchives.gov.uk/nelson/gallery8/popup/petition.htm The above link takes you to a photo of a petition by the crew of the Royal Soveriegn dated 12 Dec 1805. The top-right tab brings up a transcript. It is very interesting because it appears to be the crew reporting Captain Rotheram to Admiral Collingwood - but in a "correct" and indirect way. They must have known that Collingwood disliked Rotherham greatly and it would appear that the crew were not keen on him either. I don't know whether anything came of this. Perhaps it never reached the admiralty, but if anyone can shed any more light on this topic, I'd be glad to know what happened.