diff --git a/clockcurses.py b/clockcurses.py
index 9532136..5578e44 100755
--- a/clockcurses.py
+++ b/clockcurses.py
@@ -13,6 +13,12 @@ def termsize():
 def centerpoint(ry,rx):
     r=int(round(min(ry/1.5,rx/1.5))-1)
     return (int(round(ry/2)),int(round(rx/2)),r)
+
+def saddstr(win,y,x,s):
+    try:
+        win.addstr(y,x,s)
+    except:
+        pass
     
 def drawcircle(win,cy,cx,r):
     precision=360
@@ -20,7 +26,7 @@ def drawcircle(win,cy,cx,r):
         alpha=2.0*math.pi*a/precision
         dy=int(round(cy-float(r)*math.cos(alpha)))
         dx=int(round(cx+2.0*float(r)*math.sin(alpha)))
-        win.addstr(dy,dx,'.')
+        saddstr(win,dy,dx,'.')
     return
 
 def drawline(win,cy,cx,a,r,char):
@@ -29,7 +35,8 @@ def drawline(win,cy,cx,a,r,char):
         if l>1:
             ly=int(round(cy-float(l)*math.cos(a)/prec))
             lx=int(round(cx+1.8*float(l)*math.sin(a)/prec))
-            win.addstr(ly,lx,char)
+            saddstr(win,ly,lx,char)
+            
     return
     
 def drawdigit(win,y,x,d):
@@ -63,7 +70,7 @@ def drawsplitstr(win,y,x,st):
     ls=list(st)
     for r in range(5):
         rs=3*r
-        win.addstr(y+r,x,ls[rs]+ls[rs+1]+ls[rs+2])
+        saddstr(win,y+r,x,ls[rs]+ls[rs+1]+ls[rs+2])
     return
 
 def drawdigital(win,y,x,t):
@@ -84,9 +91,10 @@ def main():
     stdscr=curses.initscr()
     curses.curs_set(0)
     try:
-        rows,columns = termsize()
-        cy,cx,r = centerpoint(rows,columns)
+        #rows,columns = termsize()
         while (1):
+            rows,columns = stdscr.getmaxyx()
+            cy,cx,r = centerpoint(rows,columns)
             stdscr.clear()
             t=time.localtime()
             alphas=math.pi*float(t.tm_sec)/30.0
@@ -102,7 +110,7 @@ def main():
             stdscr.refresh()
             time.sleep(options.refresh)
             
-    except:# KeyboardInterrupt:
+    except KeyboardInterrupt:
         curses.nocbreak()
         stdscr.keypad(0)
         #curses.echo()