Already did it 3 times, Sean, for both deskscape and fences 3.0
Then it's not DS that is causing your issues nor would we expect it to.
do you offer remote support?
We do not.
You have had Fences 3 for some time so no doubt this has not always been like this - that something has changed and its now in this state, yes?
After you do the purge, reboot, and if you are comfortable with looking in your registry:

Is there a Fences entry still here:
Computer\HKEY_CURRENT_USER\SOFTWARE\Stardock

If so, delete it, reinstall Fences, and see if you still have the issue.
Sean Drohan
Stardock Support Manager