Yes. I have also found that if I click on TM in the top of the screen it shows Time Machine Not Configured, (but is not highlighted which tells me it is configured), Browse other TM disks and when I do this I go to another window that says "these disks contain TM backups. Choose the disk you want to use with TM. There is a blank screen, no choices, Open TM system preferences. Opening system preferences takes me back to the original problem.
Also when I click and hold on TM in the dashboard choices are TM preferences, Back up now, (a few days ago I clicked on Back up now and I got another message that said I have not backed up my files for 147 days, lately it says TM error, no backup volume has been selected, to select a backup volume open System Preferences and choose TM, the Mac was purchased in Oct of 09), Browse other TM disks, Remove from Dock, Show TM. That's the latest.