<BLOCKQUOTE>quote:</font><HR>first, skaven252, i tried what you said, but it unfortenuately did not work. it would have been so simple, with no extra work at all.<HR></BLOCKQUOTE>
That’s odd… I tried it myself before I posted the results. Interestingly enough, on my computer the black lines appeared on the right and bottom sides of the canvas, not top left. And when I set the Anti-Alias Size and Super Sample to 1, the lines vanished.
Maybe it depends on the number of layers, or maybe it depends if the material has Color Bump in it?
Anyway, glad you found a solution, albeit a laborous one.