a medium size render of 5000pixel, divided in BB and splitscanline of 100 or 200 pixel eachone.
two twins pc: cpu Q6600, 6GB ram ddr2, xp64bit.
renderer vray 1.5 sp2.

problem1- if i put a render element in, BackBurner renders ONLY the 1st stripe of any RElement.

problem2- when a stiripe (or task, if you prefer) is done and saved, server enables next task, “rendering window” appears, performs prepass, but on task “rendering image” it freezes. i can see 4 buckets (is correct), but nothing happens, look some how blocked.
so i must “cancel” and in 90% of cases, next task correctly starts. and so on…
looks like it’s never able to perform 2 tasks correctly.
it’s a pain cause we cannot render nighttime anymore, and someone must follow rendering tasks to cancel when blocks occur.

is there any kind of solution for this problem?
thank you very much for any reply, since we upgrade to max2009 we always have the same couple of troubles