Better centered dept in footer block

texinputs/beamerthemetptnew.sty

@@ -130,10 +130,10 @@
       \end{beamercolorbox}%
       \hspace*{1ex}%
       \hfill{}%
-      \begin{beamercolorbox}[center,wd=.27\paperwidth,ht=.3cm,dp=1.5ex,leftskip=1ex plus1fill,rightskip=.3cm plus1fill]{dept in head/foot}%
-         \hfill{}%
-         \insertdept
+      \begin{beamercolorbox}[wd=.27\paperwidth,ht=.3cm,dp=1.5ex,leftskip=1em,rightskip=1em]{dept in head/foot}%
          \hfill{}%
+         \insertdept%
+         \hfill{}\hfill{}%
       \end{beamercolorbox}%
       \hspace*{1ex}%
       \hfill{}%