[Osbes]

If you have some image like

http://dl.dropbox.com/u/246391/Robin.png

which looks like

http://dl.dropbox.com/u/246391/Robin_result.png

in the Sprite (it is stretched and vertical lines are added), than you possible use a GD Libary older than 2.0.36.

GD had a problem handling grayscale images with alpha channel correctly, wich was fixed with GD 2.0.36 in the Year 2007.

GD 2.0.36 (2007-11-xx)
88, Fixed support of PNG grayscale image with alpha channel (Pierre)

https://bitbucket.org/pierrejoye/gd-...361a31aab/NEWS

The solution is to update the GD-Libary to 2.0.36 (or later) or replace every file which uses "gray+alpha" with an version using "color RGBA".

I would advise to update the GD-Libary, cause there is also a serious security problem, that was fixed in the Year 2009 by Debian.

2009

libgd2 (2.0.36~rc1~dfsg-3+lenny1) stable-security; urgency=high

* Non-maintainer upload by the Security Team.
* Fixed CVE-2009-3546: possible buffer overflow or buffer over-read attacks via crafted files (Closes: #552534)

-- Giuseppe Iuculano <iuculano@debian.org> Mon, 09 Nov 2009 21:46:06 +0100

I am totally shocked by this, since there seem to be a whole bunch of people with this kind of problem and this fix is 4 years old and since 2 years known als high security fix by debian.
So there seems to be a lot problem within the maintenance of servers, if some serious security issue isnt solved since 2-4 years. If you pay money for server maintenance i would be deeply shocked, if i were you.

Best regards
Sebastian