weird lighting in corners

[uburubu]

Hi,

someone could understand how is about the upper corner of the shower tiles? There is a strange lighting that get out of there!
The object are perfectly aligned, but where is the light from?

The scene is illuminated by a single vray light from the window.

Thanx

Corradino

[Da_elf]

do you have check sample visability turned on?

[uburubu]

No, I don't.

[stafford]

you should increase number of samples...