known problems for DINO v0.7.6
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- swap funtion for binary files does not work sometimes, please report cases

- occasional crashes on the SGIs when moving the scene with the mouse. This
  seems to be a bug in the X-windows event handling. FIX: turn off all object
  before moving, rotate the scene (left-click and move mouse some), then turn
  objects back on

- writing large (e.g. 400%) TIFF files does not scale correctly

- TIFF not compressed

- stipple is not written out in POV/R3D format
