Once in a while we can see debug information at the top of chameleon pages;
in _gc: /tmp<br>

It seems that there's a echo in the garbage collector.

We found this while stress-testing the tsunami application. With many concurrent
hits, the gc was called some times and php call an error (Wrong byte count).
This is probably when the drawmap tries to set the content-type of the image.

I'll take care of ths right now.