Hi all am having no problems rendering with the automatic settings, renders are flying out and it is maxed out :-)

However cannot get something to render with manual settings in as quick time. I have 12 gig ram and i7 processor . If I try same scene on manual it takes literally 10 times longer (same quality) I think it has something to do with max bucket size it is set at 32 .... does this need to be way higher considering my ram amount ? If so by how much ?

Or can anyone recommend settings to use on manual, equating to faster rendering.

This is proving unusable atm.