Yes, I do.  ;-)

Permissions on the folder has a special group, since some of these folders are shared through SMB, of group smbusers and user smbguest (smbguest is the owner).  My account is a member of smbusers.  The permissions are rwxrwxrwx for all files in the folder, and the sticky bit is set for the group so it inherits automatically for any file or folder made inside it.

Like I said earlier, what doesn't make sense is I can click that error message from bitcoin-qt, which then closes the window, then immediately double-click the desktop icon to start it back up and it works fine again, for at least 8-12 hours.

It's done the same thing every day since I set up the 64-bit version.

I can't get the 32-bit one to even start up (doesn't even get to start checking the Blockchain), since there are some 32-bit libraries missing from the Centos install (I set it up as pure 64-bit to start with).  When I tried running it the first complaint was it couldn't find libfontconfig.so (might have been .so.0 on the end, not sure now).  So I installed the 32-bit package for that, which cleared that error.  But then it says it cannot find a file, but doesn't say what file, so I can't go any farther with it.  That's why I went with the 64-bit version when I set it up under Centos this time.  I would give the 32-bit one a try to see if it is stable like it's been everywhere else, but there is nothing in the docs that says what the software dependencies are.