Can't move files to a folder in Finder
Much ado about nothing. Here is the solution. Open Info box for the Partition. Go down to Sharing and Permissions. Unlock with password. Add entry for the administrative account you are in - uh oh - it is set to read only. Change to read and write. Problem solved. Everyone I talked to, including Apple, who wanted me to bring the computer in to the store, led me to believe this was some weird problem due to installation, so I never bothered to check for the OBVIOUS.