Corrects title alignment when it is too large.

texinputs/beamerthemetptposter.sty

@@ -66,11 +66,17 @@
 \end{tabular}
     }
     \hfill{}%
-    \begin{beamercolorbox}[center,wd=.7\paperwidth, ht=.075\paperheight, dp=.01\paperheight]{}
+    \begin{beamercolorbox}[center,wd=.7\paperwidth, ht=.075\paperheight]{}
+       \raisebox{-.01\paperheight}{%
+       \begin{minipage}[b][.070\paperheight][c]{.7\paperwidth}
+          \begin{center}
           \huge\bfseries\inserttitle\par%
           \small~\par%
           \large\insertauthor\par
           \small\insertdate
+          \end{center}
+       \end{minipage}
+    }
     \end{beamercolorbox}
    \hfill{}%
    \begin{beamercolorbox}[center,wd=.125\paperwidth, ht=.075\paperheight, dp=.031\paperheight]{poster logo title}