Hi, I have a problem with this image..
http://img18.imageshack.us/img18/6650/renderg.jpg
and this is my setting
http://img6.imageshack.us/img6/7230/vraysett.jpg
sorry but I speak a bad english 
can you help me?
thnks!
not
umm
Whats your problem, image looks just fine.
I guess he’s referring to those random black lines, am I correct?
it may be a geometric problem, like coplanar faces. have you checked that? I wanted to have a peek at your settings, but imageshack it’s just too painfully slow, I just couldn’t be bothered. sorry about that.
by the way, before realizing that it was your nickname, I read “thanks, not.” thought it was a bit rude 
you need to post your dmc sampler settings. I would guess you are having some issues related to that and your current antialiasing settings.
V Miller
hey
i have also had this problem when i import from achicad or revit is this your case?
What is the scale of your scene? Is the object far from the coordinate system origin?
Best regards,
Vlado