Hi Alex,
I tried to generate the problem you describe on a Windows box here in the lab and it worked fine.  So I have two generic pieces of advice that may solve the problem:

1) Make sure you have the most current driver for your graphics card installed.
2) If you have multisampling turned on (Favorites->Side View, Effects tab) try turning it off.

If neither of these help, please use Help->Report a Bug to submit a bug report.  That method will give us a lot more info about your system hardware and software configuration.  Also if you can please attach a session file to generate the image with and details about what your settings were in the image-save dialog.  Thanks!

--Eric

                        Eric Pettersen
                        UCSF Computer Graphics Lab
                        http://www.cgl.ucsf.edu

On Aug 8, 2011, at 7:38 AM, Alex Shkumatov wrote:

Dear Chimera-developers

We noticed a problem with saving images using Chimera, namely, when
one saves image under Windows (see attached file), there is a visible
grid present on the beads. This does not happen when one uses linux version.

On windows I am using version 1.5.3 (build 33475). On linux i have 1.5 (build
32133).

regards
Alex

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Alexander V. Shkumatov, Ph.D.
Biological Small Angle Scattering Group
EMBL Hamburg Outstation c/o DESY                 tel: +49 40 89902 178
Building 25A Notkestraße 85                      fax: +49 40 89902 149
22603 Hamburg, Germany                 email: ashkumat@embl-hamburg.de
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