offscreen_2 branch: linux/nVidia fix.
offscreen_2 branch: linux/nVidia fix.

svn path=/branches/offscreen_2/; revision=4707

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