Fixed bug that prevented use of a video node after trying to open a broken file (ID 154).
Fixed bug that prevented use of a video node after trying to open a broken file (ID 154).

svn path=/trunk/libavg/; revision=5150

th3infinity/libavg,yyd01245/libavg,yyd01245/libavg,scotty007/libavg,yyd01245/libavg,scotty007/libavg,libavg/libavg,libavg/libavg,th3infinity/libavg,scotty007/libavg,hoodie/libavg,th3infinity/libavg,hoodie/libavg,scotty007/libavg,libavg/libavg,hoodie/libavg,th3infinity/libavg,yyd01245/libavg,hoodie/libavg,libavg/libavg