OK, I downloaded 2.56a and want to upgrade my 2.54 with it.  That said, the download page at blender.org states the following:

"IMPORTANT NOTE: Before uninstalling Blender 2.55 Beta with the uninstaller, make sure you make backup copies of your production files, configuration files and custom scripts."

OK, I know what my production files are (they're in a separate folder) and I don't believe I installed any custom scripts (and I certainly haven't written anything), but what exactly are the "cofiguration" files?  I scanned through each of the folders in my 2.54 installation and don't see any file(s) with a name that gives me an idea that it's a config file.

What I did notice, however, when comparing my installation folders with the unzipped 2.54 download folders, there are a number of files that have a more current date than the date I installed it and I'm wondering if those are the files I should be backing up.  There are at least 20 or more of them right in the main Blender 2.54 folder, and there may be more in the subfolders.

Any suggestions/insights would be greatly appreciated as I don't necessarily want to have to go through UI changes again when I upgrade to 2.56a.

Thanks in advance.

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OK . . . Where's my chocolate?

Butterfly Dezignz