clicks when rendering loops

[{gleeman}]

when i try to render a loop, both in the arrangement and the session view the rendered audio isn't a perfect loop and clicks at the begin and the end... but what i hear during playback seems to loop fine.

it happens even when the "fade" button isn't pressed. i can send you some examples via e-mail to reproduce the bug.

i've experienced this bug since i've started to make loops intensively for work (live versions 4.0.3 - 4.0.4) don't know about previous versions...