However, when I created a test profile it didn't show up in this folder; the only thing there is the default "Unnamed Profile". I set my test profile to the current profile and closed AutoCAD 2010, then restarted my computer and ran AutoCAD 2010... the test profile loaded up immediately but there was still nothing in the folder.
So where, oh where, are my profiles being stored? If anyone knows then I'd greatly appreciate you sharing. Thank you.
(FYI: The "UserDataCache" folder is used by AutoCAD as a source of "out-of-the-box" files for setting itself up when a Windows user launches AutoCAD the first time.)
I do have the \Documents and Settings\...\Support\Profiles folder in my AutoCAD 2010 installation. (Which is just to say that AutoCAD does still use it under "normal" circumstances.)
Check your Support Files Search Paths (Options, Files tab). Are any of them pointing to 2009 folders?
When you installed 2010, did you "import" a profile saved from 2009? (Or did you use some other method of "migrating" your 2009 setup?) If so, AutoCAD may not have automatically adjusted the paths for the newer version (which it usually can't do if the paths are not "standard").
I believe the current profile is actually stored in the system registry, not on disc, unless you deliberately export it to an ARG (registry settings) file (which is a good idea for backup purposes).
I may be mistaken, but I don't think the "...\Support\Profiles\" folder stores "profiles" per se, anyway. The "AWS" files in those folders are registered as "AutoCAD Work Space" files, which suggests thay have more to do with workspaces than profiles. (Viewing one with Notepad reveals a lot of the contents appears to be workspace-related - mainly tool palette info.) My understanding had been that workspaces are stored in CUI (now CUIX) files. Perhaps the AWS files store Tool Palette-specific settings.
I'm afraid you got that message a little mixed up, specifically in the "NEW DEFAULT" area.
In the first part, you list the new default path for all users in 2010 as being in "...AutoCAD 2009...". Obviously, you meant 2010. In the second part you list the new default path for "2009", when again, you meant 2010.
In any case, the new defaults you listed for 2010 aren't accurate, since the profile paths have nothing to do with the version of AutoCAD you're using. They're specific to the version of Windows you're using. The old paths you listed still apply to Windows XP with both AutoCAD 2009 and 2010. The new ones are specific to Vista and should also be the same with both AutoCAD versions.