Use caution if commenting on Daz's complete lack of documentation for IRay in their forums.  The are now deleting posts and (so far) two entire threads.  I'm following several threads about the lack of manuals, two of which became heated and have been deleted.  I'm now banned from posting after asking some pointed questions about the lack of even a quickee users guide.  This has obviously hit a sore spot with both the Daz administration and us users.