couple bug reports and a question

[DayVids]

crashes when I drag a node out into same nodes in (no real point for this, but was just testing stuff)

when I hit the end of my samples ( say I set to 150 so it doesn't just keep going and going ), it seems to get a little hairy. eg. sometimes it gets a little un-responsive but not always, and I can't seem to figure out why. doesn't seem to want to update on changes, unless I change the position of the camera or something (rotate it slightly or something) and when I do, it seems to lose the assigned focus point even if AF is turned off.

As a side note, it appears that in path tracing, the light doesn't seem to reflect the materials color at all. so if I do a daylight path tracing, and I let it go, the bounced light from the material doesn't carry that materials colors on to the next surface (ex - green ball on white floor does not provide a green hue around the ball on the floor). Am I expecting something that should be happening or shouldn't be happening?

Thanks.