[When you dragged the tab so that the 3D view was 0 width the program crashed, fixed now
Andreas Röver <roever@users.sourceforge.net>**20050820184958] {
hunk ./src/gui/ArcBall.cpp 248
-  assert((NewWidth > 1.0f) && (NewHeight > 1.0f));
hunk ./src/gui/ArcBall.cpp 249
-  //Set adjustment factor for width/height
-  AdjustWidth  = 1.0f / ((NewWidth  - 1.0f) * 0.5f);
-  AdjustHeight = 1.0f / ((NewHeight - 1.0f) * 0.5f);
+  if ((NewWidth > 1.0f) && (NewHeight > 1.0f)) {
+
+    //Set adjustment factor for width/height
+    AdjustWidth  = 1.0f / ((NewWidth  - 1.0f) * 0.5f);
+    AdjustHeight = 1.0f / ((NewHeight - 1.0f) * 0.5f);
+
+  } else {
+
+    AdjustWidth  = 1.0f;
+    AdjustHeight = 1.0f;
+
+  }
}
