Although I do remember reading that Steve Jansen was rather upset about his brother locking himself and other former members of his band out of the studio for the mixing sessions of the Rain Tree Crow album. It may be one of those apocryphal stories, but I do seem to remember reading about it in Modern Music Magazine around the time of the release of that album. Still, much rain has fallen on the tree since then.
http://www.jasoncowley.net/interviews/I20050410_O.html
Hmm. Interesting link. Thank you. Seems fairly accurate to me. Don't want to reveal too much but then again, this is a forum and not an official voice for either, but the David/Steven row seemed to culminate with David being the aggressor. If my memory serves me, everything came to a head in Italy. The two were, I suppose, 'just being brothers', but things began to become rather heated and at some point things turned unimaginably ugly when David angrily picked up a silver serving tray, throwing it at Steven. Steven, who whilst trying to block it, naturally put up his hand. The result was a very bad slice in Steven's hand which made it impossible for him to play for some time. This will have been the incident which caused the long break in their relationship. I feel a bit strange revealing this here but then again, most all of us use aliases here and so there is little chance that that particular serving tray will be headed my way!