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Chimera on Mac OS X using native Aqua windows

Chimera versions are available for X windows and for native Aqua windows. We recommend the X windows version because of the many problems with the current port of the Aqua Tk window toolkit that Chimera uses.


Chimera runs on Mac OS 10.2. The Chimera 1.1872 Aqua version fails to start on Mac OS 10.3. We are investigating the problem. Chimera is not available for Mac OS 10.1.


To install Chimera, open the disk image file you downloaded. This will put the Chimera application on your desktop. This may have happened automatically when you downloaded.

If more than one person will be using Chimera, the Applications folder is a good place to put it. Moving it to that folder requires administrator privileges. If it is only for your use, putting it in your home Applications folder or leaving it on the desktop are reasonable choices.

Chimera is normally started by double clicking on its icon. If you want to start it from the command-line use the following executable


To deinstall Chimera, drag it to the trash.

Problems Downloading Chimera

If, in response to clicking the download link, your browser returns an error saying that access is denied then you may be behind a firewall that disallows outgoing http connections to ports other than port 80 (the download link goes to port 8000). You need to either access the download link from a machine that is outside your firewall, or have your firewall administrator temporarily allows connections to port 8000. As a last resort, you can send mail to us identifying yourself, saying you agree to the license terms, and specifying what platform you need Chimera for, and we will send you the installer for that platform in a few days. It will be sent as a mail attachment, so your mailer will need to be able to accept large attachments.

Problems with the Aqua version of Chimera

Most of the following problems are caused by bugs in the Aqua port of the Tk window toolkit. Most are small issues but there are so many that they degrade the usability of Chimera.

Problems with Older Mac Systems

These problems are bugs in Mac OS 10.2.x that have been fixed in Mac OS 10.3.

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