diff --git a/algebra3.cpp b/algebra3.cpp old mode 100755 new mode 100644 diff --git a/algebra3.h b/algebra3.h old mode 100755 new mode 100644 diff --git a/arcball.cpp b/arcball.cpp old mode 100755 new mode 100644 diff --git a/arcball.h b/arcball.h old mode 100755 new mode 100644 diff --git a/glui_internal.h b/glui_internal.h old mode 100755 new mode 100644 diff --git a/quaternion.cpp b/quaternion.cpp old mode 100755 new mode 100644 diff --git a/quaternion.h b/quaternion.h old mode 100755 new mode 100644