Problem with Synaptic in Wheezy/Testing

["Stephen P. Molnar" <s.molnar@sbcglobal.net>]

Synaptic 0.75.12 in 64 bit Wheezy/Testing

This is a new installation (several days ago).  Up until yesterday I
could open Synaptic as a user from the pull down System/Synaptic Package
Manager.

This morning that route doesn't work!  I can, however, open Synaptic in
a terminal with:

sudo /usr/sbin/synaptic

I have no idea as to what the problem, or the solution, may be.  Any
pointers towards a solution will be much appreciated.

Thanks in advance.